Morning Rounds \u00b7 Neonatology Omnibus<\/title>\n<link href=\"https:\/\/fonts.googleapis.com\/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400;1,600&family=Source+Serif+4:ital,wght@0,300;0,400;0,600;1,400&display=swap\" rel=\"stylesheet\">\n<style>\n#neo07 *,#neo07 *::before,#neo07 *::after{box-sizing:border-box;margin:0;padding:0}\n#neo07{\n --ter:#8B3A3A;\n --ter-light:#A85050;\n --ter-pale:#F9EDED;\n --ter-dark:#5C1E1E;\n --correct:#2D6B47;--correct-bg:#EAF6EF;--correct-border:#3A9960;\n --wrong:#B83232;--wrong-bg:#FDF0F0;--wrong-border:#E53935;\n --ink:#2A1010;--ink-mid:#5A3030;--ink-soft:#9A7070;\n --line:#EDD8D8;--cream:#FDF4F4;--warm:#FFFAFA;\n font-family:'Source Serif 4',Georgia,serif;\n font-size:16px;color:var(--ink);background:var(--cream);\n line-height:1.7;padding:0 0 64px;\n}\n#neo07 .mr-header{background:var(--ter);color:#FFFAFA;padding:34px 24px 28px;text-align:center}\n#neo07 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.mr-band-c{background:var(--correct-bg);color:var(--correct)}\n#neo07 .mr-band-w{background:var(--wrong-bg);color:var(--wrong)}\n#neo07 .mr-band-s{background:var(--ter-pale);color:var(--ter)}\n#neo07 .mr-retry{display:block;margin:18px auto 4px;background:transparent;border:2px solid var(--ter);color:var(--ter);border-radius:8px;padding:9px 28px;font-family:'Playfair Display',serif;font-size:0.92rem;font-weight:700;cursor:pointer}\n#neo07 .mr-retry:hover{background:var(--ter);color:#FFFAFA}\n@media(max-width:480px){#neo07 .mr-title{font-size:1.4rem}#neo07 .mr-num{font-size:1.7rem}#neo07 .mr-stem{font-size:0.9rem}#neo07 .mr-opt-text{font-size:0.86rem}}\n<\/style>\n\n\n\n<div id=\"neo07\">\n\n <div class=\"mr-header\">\n <div class=\"mr-eyebrow\">Morning Rounds · Neonatology Series<\/div>\n <div class=\"mr-title\">\n Neonatology Omnibus<br><em>The Full Ward Round<\/em>\n <\/div>\n <div class=\"mr-subtitle\">Ten cases across the full neonatology shelf · Trust your instinct<\/div>\n <div class=\"mr-chips\">\n <span class=\"mr-chip\">10 Cases<\/span>\n <span class=\"mr-chip\">+4 \/ −1 scoring<\/span>\n <span class=\"mr-chip\">Max 40 pts<\/span>\n <span class=\"mr-chip\">Options reshuffled<\/span>\n <\/div>\n <\/div>\n\n <div class=\"mr-sentinel\" id=\"neo07-sentinel\"><\/div>\n\n <div class=\"mr-progress\" id=\"neo07-progress\">\n <div class=\"mr-prog-inner\">\n <div class=\"mr-pips\" id=\"neo07-pips\"><\/div>\n <\/div>\n <\/div>\n\n <div class=\"mr-body\">\n <div id=\"neo07-cases\"><\/div>\n\n <div class=\"mr-submit-wrap\">\n <button class=\"mr-btn\" id=\"neo07-submit\">Submit for Debrief<\/button>\n <\/div>\n\n <div class=\"mr-score\" id=\"neo07-score\">\n <div class=\"mr-score-in\">\n <div class=\"mr-score-ey\">Round Complete<\/div>\n <div class=\"mr-ring\" id=\"neo07-ring\">\n <div class=\"mr-ring-in\">\n <span class=\"mr-ring-pct\" id=\"neo07-pct\">0%<\/span>\n <span class=\"mr-ring-sub\">net<\/span>\n <\/div>\n <\/div>\n <div class=\"mr-score-title\">Your Debrief<\/div>\n <div class=\"mr-score-net\" id=\"neo07-net\"><\/div>\n <div class=\"mr-verdict\" id=\"neo07-verdict\"><\/div>\n <div class=\"mr-bands\">\n <span class=\"mr-band mr-band-c\" id=\"neo07-ct-c\"><\/span>\n <span class=\"mr-band mr-band-w\" id=\"neo07-ct-w\"><\/span>\n <span class=\"mr-band mr-band-s\" id=\"neo07-ct-s\"><\/span>\n <\/div>\n <button class=\"mr-retry\" id=\"neo07-retry\">↻ New Round<\/button>\n <\/div>\n <\/div>\n\n <\/div>\n<\/div>\n\n\n<script>\n(function () {\n 'use strict';\n\n var NS = 'neo07';\n var TOTAL = 10;\n var MAX = 40;\n var LTRS = ['A','B','C','D'];\n\n var QS = [\n\n {\n id: 1,\n tag: 'Neonatal Hypoglycaemia — IDM',\n stem: 'A <strong>term male born to a mother with poorly controlled Type 1 diabetes<\/strong> (HbA1c 9.2%) is noted to be jittery at 90 minutes of life. A heel-prick glucose reads <strong>1.6 mmol\/L<\/strong>. He has just completed a breastfeed. What is the correct next step?',\n correct: 'IV 10% dextrose 2 mL\/kg bolus followed by continuous infusion at GIR 4–6 mg\/kg\/min — symptomatic hypoglycaemia at this level requires IV correction regardless of recent feed',\n opts: [\n 'IV 10% dextrose 2 mL\/kg bolus followed by continuous infusion at GIR 4–6 mg\/kg\/min — symptomatic hypoglycaemia at this level requires IV correction regardless of recent feed',\n 'Repeat feed and recheck in 60 minutes — breastfed IDMs always correct spontaneously by 2 hours',\n 'Administer 40% dextrose gel buccally — sufficient for all grades of neonatal hypoglycaemia in term infants',\n 'Await laboratory plasma glucose before treating — glucometer readings are unreliable below 2 mmol\/L'\n ],\n exp: 'IDMs develop <strong>fetal hyperinsulinaemia<\/strong> in response to chronic maternal hyperglycaemia; insulin levels remain high after cord clamping while the glucose supply is abruptly cut. The operational threshold for intervention in at-risk neonates is <strong><2.6 mmol\/L<\/strong>; at 1.6 mmol\/L with symptoms (jitteriness), IV treatment is mandatory. A completed breastfeed does not negate the need for IV glucose at this level. <strong>IV 10% dextrose 2 mL\/kg bolus<\/strong> raises glucose promptly; a maintenance infusion at <strong>GIR 4–6 mg\/kg\/min<\/strong> sustains it. Glucometer values should prompt treatment — laboratory confirmation is sought but must not delay therapy. 40% dextrose gel is appropriate only for mild, asymptomatic hypoglycaemia in term near-normal neonates.',\n imgId: null\n },\n\n {\n id: 2,\n tag: 'Congenital Infection — CMV vs Rubella',\n stem: 'A <strong>term female<\/strong> is born with <strong>petechiae, hepatosplenomegaly, jaundice, and sensorineural hearing loss<\/strong> confirmed on neonatal BERA. Head circumference is on the 2nd centile. Cranial ultrasound shows <strong>periventricular calcifications<\/strong>. The mother had a flu-like illness at 10 weeks of gestation. Urine CMV PCR in the neonate is positive. Which statement about this infection is MOST CORRECT?',\n correct: 'Congenital CMV is the commonest congenital infection; periventricular calcification and sensorineural hearing loss are characteristic; valganciclovir for 6 months improves hearing outcomes',\n opts: [\n 'Congenital CMV is the commonest congenital infection; periventricular calcification and sensorineural hearing loss are characteristic; valganciclovir for 6 months improves hearing outcomes',\n 'Congenital rubella is more likely — periventricular calcification is pathognomonic of rubella, not CMV',\n 'No treatment is indicated — antiviral therapy for congenital CMV has no proven benefit on hearing outcomes',\n 'Congenital toxoplasmosis is the diagnosis — periventricular calcification with hearing loss is the classic toxoplasma triad'\n ],\n exp: '<strong>Congenital CMV<\/strong> is the <em>commonest<\/em> congenital infection (0.5–1% of all births). Features: IUGR, petechiae (thrombocytopenia), hepatosplenomegaly, jaundice, <strong>periventricular calcifications<\/strong>, microcephaly, and <strong>sensorineural hearing loss (SNHL)<\/strong> — the most common long-term sequela, which may be progressive. Diagnosis: urine or saliva CMV PCR in the first 3 weeks. <strong>Oral valganciclovir for 6 months<\/strong> in symptomatic neonates improves hearing and neurodevelopmental outcomes (CASG trial). Congenital <em>rubella<\/em> causes <em>diffuse<\/em> (not periventricular) cerebral calcification and has the classic triad of cataracts, cardiac defects, and SNHL. <em>Toxoplasmosis<\/em> causes <em>diffuse<\/em> calcification, chorioretinitis, and hydrocephalus. Periventricular location is the CMV fingerprint.',\n imgId: null\n },\n\n {\n id: 3,\n tag: 'Haemolytic Disease of Newborn — ABO vs Rh',\n stem: 'A <strong>term male, blood group A positive<\/strong>, born to a <strong>group O positive mother<\/strong>, develops jaundice at <strong>18 hours of life<\/strong>. TSB is 14 mg\/dL. Direct Coombs test (DCT) is <strong>weakly positive<\/strong>. Peripheral blood film shows spherocytes. Which statement best distinguishes this from Rh incompatibility?',\n correct: 'ABO incompatibility occurs in O-mother\/A or B-baby pairs regardless of parity; spherocytes on film and weak DCT are typical; it is usually milder than Rh disease',\n opts: [\n 'ABO incompatibility occurs in O-mother\/A or B-baby pairs regardless of parity; spherocytes on film and weak DCT are typical; it is usually milder than Rh disease',\n 'Rh incompatibility is more likely as it always causes jaundice within 24 hours in a first pregnancy',\n 'A positive DCT excludes ABO incompatibility — only Rh disease gives a positive Coombs result',\n 'ABO incompatibility requires prior sensitisation and therefore only affects second or later pregnancies'\n ],\n exp: '<strong>ABO incompatibility<\/strong> is the commonest cause of haemolytic jaundice in neonates. It occurs when the mother is <strong>group O<\/strong> (carrying naturally occurring anti-A and anti-B IgG) and the baby is group A or B. Crucially, unlike Rh disease, <strong>no prior sensitisation is needed<\/strong> — it can affect the <em>first<\/em> pregnancy. Features: early jaundice (<24 h), <strong>spherocytes<\/strong> on film (anti-A\/B IgG coats RBCs causing splenic removal of membrane), <strong>weakly positive DCT<\/strong> (fewer antigens per RBC compared with Rh). It is generally milder than Rh disease; hydrops and severe anaemia are uncommon. <strong>Rh disease (anti-D)<\/strong> requires prior sensitisation (or large fetomaternal haemorrhage), tends to be more severe with progressive anaemia, and gives a strongly positive DCT. Anti-D prophylaxis has dramatically reduced Rh disease incidence.',\n imgId: null\n },\n\n {\n id: 4,\n tag: 'Congenital Hypothyroidism — Screening & Treatment',\n stem: 'A <strong>term female<\/strong> is flagged on <strong>newborn blood spot screening at day 5<\/strong> with a <strong>TSH of 68 mU\/L<\/strong> (normal <20). She appears clinically normal — no goitre, no prolonged jaundice, feeding well. Confirmatory serum TSH is 72 mU\/L; free T4 is low. What is the correct management and its rationale?',\n correct: 'Start levothyroxine immediately at 10–15 mcg\/kg\/day — treatment within the first 2 weeks of life prevents irreversible neurodevelopmental damage',\n opts: [\n 'Start levothyroxine immediately at 10–15 mcg\/kg\/day — treatment within the first 2 weeks of life prevents irreversible neurodevelopmental damage',\n 'Repeat TSH at 4 weeks before treating — TSH fluctuates in the neonatal period and a single elevated value does not require treatment',\n 'Start levothyroxine only if clinical features of hypothyroidism develop — biochemical hypothyroidism without symptoms does not require treatment in neonates',\n 'Refer for thyroid scintigraphy before starting treatment — the underlying cause must be established prior to levothyroxine'\n ],\n exp: '<strong>Congenital hypothyroidism (CH)<\/strong> affects 1 in 2000–4000 births and is the commonest preventable cause of intellectual disability. The neonatal brain is critically dependent on thyroid hormone in the first weeks of life for neuronal migration, myelination, and synaptic development. Clinical features are often absent at birth (protected by maternal T4 crossing the placenta). <strong>Newborn blood spot TSH screening<\/strong> detects CH before symptoms emerge. Treatment with <strong>levothyroxine 10–15 mcg\/kg\/day<\/strong> must begin within the <strong>first 2 weeks of life<\/strong> to prevent irreversible neurodevelopmental damage — delay beyond this window is associated with lower IQ regardless of subsequent treatment adequacy. The commonest cause is thyroid dysgenesis (ectopic or absent gland). Scintigraphy is informative but must never delay treatment.',\n imgId: null\n },\n\n {\n id: 5,\n tag: 'Neonatal Polycythaemia — Definition & Management',\n stem: 'A <strong>term SGA male<\/strong>, born at 38 weeks with birth weight on the 2nd centile, is noted to be <strong>plethoric and jittery<\/strong> at 6 hours of life. A venous haematocrit is <strong>72%<\/strong>. Which statement about management is MOST CORRECT?',\n correct: 'Partial exchange transfusion with normal saline to reduce haematocrit to <60% is indicated for symptomatic polycythaemia — defined as venous Hct >65%',\n opts: [\n 'Partial exchange transfusion with normal saline to reduce haematocrit to <60% is indicated for symptomatic polycythaemia — defined as venous Hct >65%',\n 'Venesection alone (removing blood without replacement) is the correct treatment to reduce haematocrit rapidly',\n 'No treatment is needed — a haematocrit of 72% is within the normal range for SGA term neonates',\n 'IV hydration alone always corrects polycythaemia in SGA neonates; exchange transfusion is never indicated'\n ],\n exp: '<strong>Neonatal polycythaemia<\/strong> is defined as venous haematocrit ><strong>65%<\/strong> (or haemoglobin >22 g\/dL). SGA neonates are at risk due to chronic fetal hypoxia stimulating erythropoietin secretion. High haematocrit increases blood viscosity exponentially, reducing microvascular flow to the brain, gut, and kidneys. Symptoms: plethora, jitteriness, hypoglycaemia, respiratory distress, and — in severe cases — seizures and NEC. Treatment for <strong>symptomatic polycythaemia or Hct >70%<\/strong> is <strong>partial exchange transfusion (PET)<\/strong>: a calculated volume of blood is withdrawn and replaced with <strong>normal saline<\/strong> (not albumin, which is no longer recommended) to target a Hct of 50–55%. Volume for exchange = blood volume × (observed Hct − desired Hct) ÷ observed Hct. Venesection alone causes hypovolaemia.',\n imgId: null\n },\n\n {\n id: 6,\n tag: 'Neonatal Thrombocytopenia — NAIT',\n stem: 'A <strong>term female, first child<\/strong>, is born to a healthy mother with a normal platelet count. At 12 hours of life the baby has <strong>petechiae, cephalhaematoma, and platelet count of 18,000\/mm³<\/strong>. The mother\\'s platelets are normal; the father is HPA-1a positive. Cranial ultrasound shows a small intracranial haemorrhage. What is the diagnosis and treatment?',\n correct: 'Neonatal alloimmune thrombocytopenia (NAIT) due to anti-HPA-1a antibodies — treat with HPA-1a negative \/ HPA-1b homozygous irradiated platelets; IVIG if matched platelets unavailable',\n opts: [\n 'Neonatal alloimmune thrombocytopenia (NAIT) due to anti-HPA-1a antibodies — treat with HPA-1a negative \/ HPA-1b homozygous irradiated platelets; IVIG if matched platelets unavailable',\n 'Immune thrombocytopenia (ITP) — maternal anti-platelet IgG crossing the placenta; treat with maternal IVIG',\n 'Sepsis-related thrombocytopenia — a well-appearing neonate cannot have immune thrombocytopenia; treat with antibiotics',\n 'Kasabach-Merritt syndrome — platelet trapping in a haemangioma; no specific treatment needed in term neonates'\n ],\n exp: '<strong>NAIT (Neonatal Alloimmune Thrombocytopenia)<\/strong> is the platelet equivalent of haemolytic disease of the newborn. The mother lacks a platelet antigen (most commonly <strong>HPA-1a<\/strong>, present in ~98% of the population), becomes sensitised to fetal platelets carrying paternal HPA-1a, and produces IgG antibodies that cross the placenta and destroy fetal platelets. Critically, <strong>NAIT can affect the first pregnancy<\/strong> (unlike Rh disease) and is the commonest cause of severe thrombocytopenia and intracranial haemorrhage in term neonates. The mother\\'s own platelet count is <em>normal<\/em> (distinguishing it from ITP where maternal platelets are also low). Treatment: <strong>HPA-1a-negative irradiated matched platelets<\/strong> are ideal; <strong>IVIG<\/strong> raises the platelet count when matched platelets are unavailable. Random donor platelets are ineffective.',\n imgId: null\n },\n\n {\n id: 7,\n tag: 'Neonatal Nutrition — Breast Milk in Preterm',\n stem: 'A <strong>28-week male<\/strong> in the NICU is being fed expressed breast milk (EBM) from his mother. The neonatology team considers adding a <strong>human milk fortifier (HMF)<\/strong>. The mother asks why fortifier is needed if breast milk is already the best nutrition. Which statement is MOST CORRECT?',\n correct: 'Preterm infants have higher protein, calcium, and phosphorus requirements per kg than term infants; unfortified breast milk is insufficient for preterm bone mineralisation and growth velocity',\n opts: [\n 'Preterm infants have higher protein, calcium, and phosphorus requirements per kg than term infants; unfortified breast milk is insufficient for preterm bone mineralisation and growth velocity',\n 'Fortifier is added only to increase caloric density — protein and mineral content of breast milk is adequate for all gestations',\n 'Formula is nutritionally superior to fortified breast milk for preterm infants — HMF is a compromise measure only',\n 'Human milk fortifier increases the risk of NEC and should be avoided in infants under 30 weeks'\n ],\n exp: '<strong>Breast milk<\/strong> is unequivocally the preferred feed for preterm neonates — it reduces NEC risk by up to 6-fold compared with formula, provides immune protection (secretory IgA, lactoferrin, oligosaccharides), and improves neurodevelopmental outcomes. However, <strong>unfortified breast milk does not meet the high demands of a preterm infant<\/strong> for protein (3.5–4 g\/kg\/day needed), calcium, and phosphorus required for ex-utero growth velocity matching intrauterine rates. Without fortification, preterm infants develop metabolic bone disease (osteopenia of prematurity) and poor weight gain. <strong>Human milk fortifier<\/strong> adds protein, minerals, and calories to EBM without sacrificing its protective properties. It is a standard of care in all VLBW infants. Donor pasteurised breast milk (from a milk bank) is the next choice when maternal EBM is unavailable.',\n imgId: null\n },\n\n {\n id: 8,\n tag: 'Patent Ductus Arteriosus — Preterm PDA',\n stem: 'A <strong>27-week male<\/strong> on day 5 of life develops <strong>worsening respiratory support requirements, bounding pulses, a hyperdynamic precordium, and a continuous machinery murmur<\/strong>. Echocardiography confirms a <strong>large haemodynamically significant PDA<\/strong> with left-to-right shunting and left atrial dilatation. Initial conservative management (fluid restriction, diuretics) has failed. What is the pharmacological treatment of choice and its mechanism?',\n correct: 'Indomethacin or ibuprofen IV — COX inhibitors reduce prostaglandin E2, which is the primary mediator keeping the ductus open in preterm neonates',\n opts: [\n 'Indomethacin or ibuprofen IV — COX inhibitors reduce prostaglandin E2, which is the primary mediator keeping the ductus open in preterm neonates',\n 'IV digoxin — positive inotrope that reduces left-to-right shunting by improving left ventricular contractility',\n 'Oral sildenafil — PDE5 inhibitor that selectively constricts the ductus by reducing cGMP-mediated vasodilatation',\n 'Subcutaneous octreotide — somatostatin analogue that reduces ductal flow by decreasing pulmonary blood volume'\n ],\n exp: 'The <strong>ductus arteriosus<\/strong> is maintained patent in fetal life by <strong>prostaglandin E2 (PGE2)<\/strong> and low oxygen tension. In preterm neonates, the ductus often fails to close because of higher circulating PGE2 and reduced smooth muscle responsiveness to oxygen. A haemodynamically significant PDA causes a left-to-right shunt → pulmonary overcirculation → worsening respiratory failure, and systemic hypoperfusion (bounding pulses, wide pulse pressure). <strong>Indomethacin<\/strong> (or ibuprofen) inhibits <strong>cyclo-oxygenase (COX)<\/strong>, reducing PGE2 synthesis and allowing ductal constriction. Ibuprofen has fewer renal side effects. <strong>Oral paracetamol<\/strong> is an emerging alternative (inhibits peroxidase component of COX). Surgical ligation is reserved for pharmacological failure. In recent years, conservative management (watchful waiting) is increasingly preferred for smaller, asymptomatic PDAs as many close spontaneously.',\n imgId: null\n },\n\n {\n id: 9,\n tag: 'Congenital Syphilis — Diagnosis & Treatment',\n stem: 'A <strong>term male<\/strong> is born to a mother whose antenatal syphilis serology was reactive (RPR titre 1:64) but who received <strong>no treatment during pregnancy<\/strong>. The neonate has <strong>snuffles (bloody nasal discharge), maculopapular rash involving the palms and soles, hepatosplenomegaly, and periostitis on long bone X-rays<\/strong>. What is the correct treatment?',\n correct: 'Aqueous crystalline benzylpenicillin IV 50,000 units\/kg every 12 hours (first 7 days) then every 8 hours for a total of 10–14 days',\n opts: [\n 'Aqueous crystalline benzylpenicillin IV 50,000 units\/kg every 12 hours (first 7 days) then every 8 hours for a total of 10–14 days',\n 'Single dose IM benzathine penicillin 50,000 units\/kg — adequate for all stages of congenital syphilis',\n 'Oral doxycycline for 14 days — first-line for congenital syphilis when IV access is not possible',\n 'No treatment needed if the neonate is clinically well — treat only if VDRL titre is >4-fold higher than maternal titre'\n ],\n exp: '<strong>Congenital syphilis<\/strong> results from transplacental transmission of <em>Treponema pallidum<\/em>; risk is highest with primary\/secondary maternal syphilis. Early features: snuffles, rash (copper-coloured, involves palms and soles — a hallmark), hepatosplenomegaly, periostitis (Wimberger sign on X-ray), pseudoparalysis of Parrot. Late features (after 2 years): Hutchinson\\'s teeth, interstitial keratitis, saddlenose, sabre tibia. Treatment is <strong>aqueous IV benzylpenicillin<\/strong> for <strong>10–14 days<\/strong> — this achieves adequate CSF levels essential for neurosyphilis coverage. <strong>Single-dose IM benzathine penicillin<\/strong> does <em>not<\/em> achieve adequate CSF levels and is <strong>not acceptable<\/strong> for proven congenital syphilis. Doxycycline is contraindicated in neonates. This neonate has symptomatic congenital syphilis and requires full IV treatment regardless of VDRL titre comparison.',\n imgId: null\n },\n\n {\n id: 10,\n tag: 'Neonatal Abstinence Syndrome — Opioid Withdrawal',\n stem: 'A <strong>term male<\/strong> is born to a mother on <strong>methadone maintenance therapy (80 mg\/day)<\/strong> throughout pregnancy. At 36 hours of life he develops <strong>high-pitched cry, tremors, poor feeding, sneezing, loose stools, and diaphoresis<\/strong>. His Finnegan score is consistently <strong>9–10<\/strong> over three consecutive assessments. What is the correct pharmacological treatment?',\n correct: 'Oral morphine solution (neonatal NAS protocol) — opioid replacement is first-line for NAS; dose titrated against Finnegan score, then weaned over weeks',\n opts: [\n 'Oral morphine solution (neonatal NAS protocol) — opioid replacement is first-line for NAS; dose titrated against Finnegan score, then weaned over weeks',\n 'IV naloxone — opioid antagonist that rapidly reverses withdrawal symptoms in methadone-exposed neonates',\n 'Oral clonidine as monotherapy — alpha-2 agonist that is now first-line for all NAS, replacing opioid replacement entirely',\n 'Phenobarbitone IV — first-line for NAS because methadone is a sedative and phenobarbitone provides cross-tolerance'\n ],\n exp: '<strong>Neonatal Abstinence Syndrome (NAS)<\/strong> results from in-utero opioid exposure (methadone, heroin, buprenorphine); withdrawal typically begins at <strong>24–72 hours<\/strong> for methadone (longer half-life) and 12–24 hours for heroin. The <strong>Finnegan Neonatal Abstinence Scoring Tool<\/strong> assesses 21 items across CNS, metabolic, vasomotor, GI, and respiratory domains; a score ≥8 on two consecutive assessments (or ≥12 once) triggers pharmacological treatment. <strong>Oral morphine solution<\/strong> (or oral methadone at some centres) is first-line opioid replacement — it provides the same receptor class as the original exposure, most effectively controlling symptoms. Dose is titrated upward until the Finnegan score is controlled, then weaned by 10% every 1–2 days. <strong>Clonidine or phenobarbitone<\/strong> are used as <em>adjuncts<\/em> for refractory NAS, not as monotherapy. <strong>Naloxone is absolutely contraindicated<\/strong> in opioid-dependent neonates — it precipitates acute severe withdrawal and seizures.',\n imgId: null\n }\n\n ];\n\n\n var answers = {};\n var answered = 0;\n var shuffled = {};\n var done = false;\n\n function byId(id) { return document.getElementById(id); }\n function gid(suffix) { return byId(NS + '-' + suffix); }\n\n function shuffleArr(arr) {\n var a = arr.slice(), i, j, tmp;\n for (i = a.length - 1; i > 0; i--) {\n j = Math.floor(Math.random() * (i + 1));\n tmp = a[i]; a[i] = a[j]; a[j] = tmp;\n }\n return a;\n }\n\n function countVal(val) {\n var k, n = 0;\n for (k in answers) {\n if (answers.hasOwnProperty(k) && answers[k] === val) n++;\n }\n return n;\n }\n\n function buildPips() {\n var cont = gid('pips'), i, q, wLine, wPip, line, pip;\n cont.innerHTML = '';\n for (i = 0; i < QS.length; i++) {\n q = QS[i];\n if (i > 0) {\n wLine = document.createElement('div');\n wLine.className = 'mr-pip-wrap';\n line = document.createElement('div');\n line.className = 'mr-pip-line';\n line.id = NS + '-pl' + q.id;\n wLine.appendChild(line);\n cont.appendChild(wLine);\n }\n wPip = document.createElement('div');\n wPip.className = 'mr-pip-wrap';\n pip = document.createElement('div');\n pip.className = 'mr-pip';\n pip.id = NS + '-pip' + q.id;\n pip.textContent = String(q.id);\n wPip.appendChild(pip);\n cont.appendChild(wPip);\n }\n }\n\n function build() {\n var cont, i, q, opts, card, top, numDiv, meta, tag, stem,\n rule, optsDiv, expDiv, lbl, txt, j,\n optEl, ltrSpan, txtSpan;\n\n cont = gid('cases');\n cont.innerHTML = '';\n answers = {}; answered = 0; shuffled = {}; done = false;\n gid('score').style.display = 'none';\n buildPips();\n\n for (i = 0; i < QS.length; i++) {\n q = QS[i];\n opts = shuffleArr(q.opts);\n shuffled[q.id] = opts;\n\n card = document.createElement('div');\n card.className = 'mr-case';\n\n top = document.createElement('div');\n top.className = 'mr-case-top';\n\n numDiv = document.createElement('div');\n numDiv.className = 'mr-num';\n numDiv.textContent = q.id < 10 ? 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.mr-opt-text{font-size:0.86rem}}\n<\/style>\n\n\n\n<div id=\"neo07\">\n\n <div class=\"mr-header\">\n <div class=\"mr-eyebrow\">Morning Rounds · Neonatology Series<\/div>\n <div class=\"mr-title\">\n Neonatology Omnibus<br><em>The Full Ward Round<\/em>\n <\/div>\n <div class=\"mr-subtitle\">Ten cases across the full neonatology shelf · Trust your instinct<\/div>\n <div class=\"mr-chips\">\n <span class=\"mr-chip\">10 Cases<\/span>\n <span class=\"mr-chip\">+4 \/ −1 scoring<\/span>\n <span class=\"mr-chip\">Max 40 pts<\/span>\n <span class=\"mr-chip\">Options reshuffled<\/span>\n <\/div>\n <\/div>\n\n <div class=\"mr-sentinel\" id=\"neo07-sentinel\"><\/div>\n\n <div class=\"mr-progress\" id=\"neo07-progress\">\n <div class=\"mr-prog-inner\">\n <div class=\"mr-pips\" id=\"neo07-pips\"><\/div>\n <\/div>\n <\/div>\n\n <div class=\"mr-body\">\n <div id=\"neo07-cases\"><\/div>\n\n <div class=\"mr-submit-wrap\">\n <button class=\"mr-btn\" id=\"neo07-submit\">Submit for Debrief<\/button>\n <\/div>\n\n <div class=\"mr-score\" id=\"neo07-score\">\n <div class=\"mr-score-in\">\n <div class=\"mr-score-ey\">Round Complete<\/div>\n <div class=\"mr-ring\" id=\"neo07-ring\">\n <div class=\"mr-ring-in\">\n <span class=\"mr-ring-pct\" id=\"neo07-pct\">0%<\/span>\n <span class=\"mr-ring-sub\">net<\/span>\n <\/div>\n <\/div>\n <div class=\"mr-score-title\">Your Debrief<\/div>\n <div class=\"mr-score-net\" id=\"neo07-net\"><\/div>\n <div class=\"mr-verdict\" id=\"neo07-verdict\"><\/div>\n <div class=\"mr-bands\">\n <span class=\"mr-band mr-band-c\" id=\"neo07-ct-c\"><\/span>\n <span class=\"mr-band mr-band-w\" id=\"neo07-ct-w\"><\/span>\n <span class=\"mr-band mr-band-s\" id=\"neo07-ct-s\"><\/span>\n <\/div>\n <button class=\"mr-retry\" id=\"neo07-retry\">↻ New Round<\/button>\n <\/div>\n <\/div>\n\n <\/div>\n<\/div>\n\n\n<script>\n(function () {\n 'use strict';\n\n var NS = 'neo07';\n var TOTAL = 10;\n var MAX = 40;\n var LTRS = ['A','B','C','D'];\n\n var QS = [\n\n {\n id: 1,\n tag: 'Neonatal Hypoglycaemia — IDM',\n stem: 'A <strong>term male born to a mother with poorly controlled Type 1 diabetes<\/strong> (HbA1c 9.2%) is noted to be jittery at 90 minutes of life. A heel-prick glucose reads <strong>1.6 mmol\/L<\/strong>. He has just completed a breastfeed. What is the correct next step?',\n correct: 'IV 10% dextrose 2 mL\/kg bolus followed by continuous infusion at GIR 4–6 mg\/kg\/min — symptomatic hypoglycaemia at this level requires IV correction regardless of recent feed',\n opts: [\n 'IV 10% dextrose 2 mL\/kg bolus followed by continuous infusion at GIR 4–6 mg\/kg\/min — symptomatic hypoglycaemia at this level requires IV correction regardless of recent feed',\n 'Repeat feed and recheck in 60 minutes — breastfed IDMs always correct spontaneously by 2 hours',\n 'Administer 40% dextrose gel buccally — sufficient for all grades of neonatal hypoglycaemia in term infants',\n 'Await laboratory plasma glucose before treating — glucometer readings are unreliable below 2 mmol\/L'\n ],\n exp: 'IDMs develop <strong>fetal hyperinsulinaemia<\/strong> in response to chronic maternal hyperglycaemia; insulin levels remain high after cord clamping while the glucose supply is abruptly cut. The operational threshold for intervention in at-risk neonates is <strong><2.6 mmol\/L<\/strong>; at 1.6 mmol\/L with symptoms (jitteriness), IV treatment is mandatory. A completed breastfeed does not negate the need for IV glucose at this level. <strong>IV 10% dextrose 2 mL\/kg bolus<\/strong> raises glucose promptly; a maintenance infusion at <strong>GIR 4–6 mg\/kg\/min<\/strong> sustains it. Glucometer values should prompt treatment — laboratory confirmation is sought but must not delay therapy. 40% dextrose gel is appropriate only for mild, asymptomatic hypoglycaemia in term near-normal neonates.',\n imgId: null\n },\n\n {\n id: 2,\n tag: 'Congenital Infection — CMV vs Rubella',\n stem: 'A <strong>term female<\/strong> is born with <strong>petechiae, hepatosplenomegaly, jaundice, and sensorineural hearing loss<\/strong> confirmed on neonatal BERA. Head circumference is on the 2nd centile. Cranial ultrasound shows <strong>periventricular calcifications<\/strong>. The mother had a flu-like illness at 10 weeks of gestation. Urine CMV PCR in the neonate is positive. Which statement about this infection is MOST CORRECT?',\n correct: 'Congenital CMV is the commonest congenital infection; periventricular calcification and sensorineural hearing loss are characteristic; valganciclovir for 6 months improves hearing outcomes',\n opts: [\n 'Congenital CMV is the commonest congenital infection; periventricular calcification and sensorineural hearing loss are characteristic; valganciclovir for 6 months improves hearing outcomes',\n 'Congenital rubella is more likely — periventricular calcification is pathognomonic of rubella, not CMV',\n 'No treatment is indicated — antiviral therapy for congenital CMV has no proven benefit on hearing outcomes',\n 'Congenital toxoplasmosis is the diagnosis — periventricular calcification with hearing loss is the classic toxoplasma triad'\n ],\n exp: '<strong>Congenital CMV<\/strong> is the <em>commonest<\/em> congenital infection (0.5–1% of all births). Features: IUGR, petechiae (thrombocytopenia), hepatosplenomegaly, jaundice, <strong>periventricular calcifications<\/strong>, microcephaly, and <strong>sensorineural hearing loss (SNHL)<\/strong> — the most common long-term sequela, which may be progressive. Diagnosis: urine or saliva CMV PCR in the first 3 weeks. <strong>Oral valganciclovir for 6 months<\/strong> in symptomatic neonates improves hearing and neurodevelopmental outcomes (CASG trial). Congenital <em>rubella<\/em> causes <em>diffuse<\/em> (not periventricular) cerebral calcification and has the classic triad of cataracts, cardiac defects, and SNHL. <em>Toxoplasmosis<\/em> causes <em>diffuse<\/em> calcification, chorioretinitis, and hydrocephalus. Periventricular location is the CMV fingerprint.',\n imgId: null\n },\n\n {\n id: 3,\n tag: 'Haemolytic Disease of Newborn — ABO vs Rh',\n stem: 'A <strong>term male, blood group A positive<\/strong>, born to a <strong>group O positive mother<\/strong>, develops jaundice at <strong>18 hours of life<\/strong>. TSB is 14 mg\/dL. Direct Coombs test (DCT) is <strong>weakly positive<\/strong>. Peripheral blood film shows spherocytes. Which statement best distinguishes this from Rh incompatibility?',\n correct: 'ABO incompatibility occurs in O-mother\/A or B-baby pairs regardless of parity; spherocytes on film and weak DCT are typical; it is usually milder than Rh disease',\n opts: [\n 'ABO incompatibility occurs in O-mother\/A or B-baby pairs regardless of parity; spherocytes on film and weak DCT are typical; it is usually milder than Rh disease',\n 'Rh incompatibility is more likely as it always causes jaundice within 24 hours in a first pregnancy',\n 'A positive DCT excludes ABO incompatibility — only Rh disease gives a positive Coombs result',\n 'ABO incompatibility requires prior sensitisation and therefore only affects second or later pregnancies'\n ],\n exp: '<strong>ABO incompatibility<\/strong> is the commonest cause of haemolytic jaundice in neonates. It occurs when the mother is <strong>group O<\/strong> (carrying naturally occurring anti-A and anti-B IgG) and the baby is group A or B. Crucially, unlike Rh disease, <strong>no prior sensitisation is needed<\/strong> — it can affect the <em>first<\/em> pregnancy. Features: early jaundice (<24 h), <strong>spherocytes<\/strong> on film (anti-A\/B IgG coats RBCs causing splenic removal of membrane), <strong>weakly positive DCT<\/strong> (fewer antigens per RBC compared with Rh). It is generally milder than Rh disease; hydrops and severe anaemia are uncommon. <strong>Rh disease (anti-D)<\/strong> requires prior sensitisation (or large fetomaternal haemorrhage), tends to be more severe with progressive anaemia, and gives a strongly positive DCT. Anti-D prophylaxis has dramatically reduced Rh disease incidence.',\n imgId: null\n },\n\n {\n id: 4,\n tag: 'Congenital Hypothyroidism — Screening & Treatment',\n stem: 'A <strong>term female<\/strong> is flagged on <strong>newborn blood spot screening at day 5<\/strong> with a <strong>TSH of 68 mU\/L<\/strong> (normal <20). She appears clinically normal — no goitre, no prolonged jaundice, feeding well. Confirmatory serum TSH is 72 mU\/L; free T4 is low. What is the correct management and its rationale?',\n correct: 'Start levothyroxine immediately at 10–15 mcg\/kg\/day — treatment within the first 2 weeks of life prevents irreversible neurodevelopmental damage',\n opts: [\n 'Start levothyroxine immediately at 10–15 mcg\/kg\/day — treatment within the first 2 weeks of life prevents irreversible neurodevelopmental damage',\n 'Repeat TSH at 4 weeks before treating — TSH fluctuates in the neonatal period and a single elevated value does not require treatment',\n 'Start levothyroxine only if clinical features of hypothyroidism develop — biochemical hypothyroidism without symptoms does not require treatment in neonates',\n 'Refer for thyroid scintigraphy before starting treatment — the underlying cause must be established prior to levothyroxine'\n ],\n exp: '<strong>Congenital hypothyroidism (CH)<\/strong> affects 1 in 2000–4000 births and is the commonest preventable cause of intellectual disability. The neonatal brain is critically dependent on thyroid hormone in the first weeks of life for neuronal migration, myelination, and synaptic development. Clinical features are often absent at birth (protected by maternal T4 crossing the placenta). <strong>Newborn blood spot TSH screening<\/strong> detects CH before symptoms emerge. Treatment with <strong>levothyroxine 10–15 mcg\/kg\/day<\/strong> must begin within the <strong>first 2 weeks of life<\/strong> to prevent irreversible neurodevelopmental damage — delay beyond this window is associated with lower IQ regardless of subsequent treatment adequacy. The commonest cause is thyroid dysgenesis (ectopic or absent gland). Scintigraphy is informative but must never delay treatment.',\n imgId: null\n },\n\n {\n id: 5,\n tag: 'Neonatal Polycythaemia — Definition & Management',\n stem: 'A <strong>term SGA male<\/strong>, born at 38 weeks with birth weight on the 2nd centile, is noted to be <strong>plethoric and jittery<\/strong> at 6 hours of life. A venous haematocrit is <strong>72%<\/strong>. Which statement about management is MOST CORRECT?',\n correct: 'Partial exchange transfusion with normal saline to reduce haematocrit to <60% is indicated for symptomatic polycythaemia — defined as venous Hct >65%',\n opts: [\n 'Partial exchange transfusion with normal saline to reduce haematocrit to <60% is indicated for symptomatic polycythaemia — defined as venous Hct >65%',\n 'Venesection alone (removing blood without replacement) is the correct treatment to reduce haematocrit rapidly',\n 'No treatment is needed — a haematocrit of 72% is within the normal range for SGA term neonates',\n 'IV hydration alone always corrects polycythaemia in SGA neonates; exchange transfusion is never indicated'\n ],\n exp: '<strong>Neonatal polycythaemia<\/strong> is defined as venous haematocrit ><strong>65%<\/strong> (or haemoglobin >22 g\/dL). SGA neonates are at risk due to chronic fetal hypoxia stimulating erythropoietin secretion. High haematocrit increases blood viscosity exponentially, reducing microvascular flow to the brain, gut, and kidneys. Symptoms: plethora, jitteriness, hypoglycaemia, respiratory distress, and — in severe cases — seizures and NEC. Treatment for <strong>symptomatic polycythaemia or Hct >70%<\/strong> is <strong>partial exchange transfusion (PET)<\/strong>: a calculated volume of blood is withdrawn and replaced with <strong>normal saline<\/strong> (not albumin, which is no longer recommended) to target a Hct of 50–55%. Volume for exchange = blood volume × (observed Hct − desired Hct) ÷ observed Hct. Venesection alone causes hypovolaemia.',\n imgId: null\n },\n\n {\n id: 6,\n tag: 'Neonatal Thrombocytopenia — NAIT',\n stem: 'A <strong>term female, first child<\/strong>, is born to a healthy mother with a normal platelet count. At 12 hours of life the baby has <strong>petechiae, cephalhaematoma, and platelet count of 18,000\/mm³<\/strong>. The mother\\'s platelets are normal; the father is HPA-1a positive. Cranial ultrasound shows a small intracranial haemorrhage. What is the diagnosis and treatment?',\n correct: 'Neonatal alloimmune thrombocytopenia (NAIT) due to anti-HPA-1a antibodies — treat with HPA-1a negative \/ HPA-1b homozygous irradiated platelets; IVIG if matched platelets unavailable',\n opts: [\n 'Neonatal alloimmune thrombocytopenia (NAIT) due to anti-HPA-1a antibodies — treat with HPA-1a negative \/ HPA-1b homozygous irradiated platelets; IVIG if matched platelets unavailable',\n 'Immune thrombocytopenia (ITP) — maternal anti-platelet IgG crossing the placenta; treat with maternal IVIG',\n 'Sepsis-related thrombocytopenia — a well-appearing neonate cannot have immune thrombocytopenia; treat with antibiotics',\n 'Kasabach-Merritt syndrome — platelet trapping in a haemangioma; no specific treatment needed in term neonates'\n ],\n exp: '<strong>NAIT (Neonatal Alloimmune Thrombocytopenia)<\/strong> is the platelet equivalent of haemolytic disease of the newborn. The mother lacks a platelet antigen (most commonly <strong>HPA-1a<\/strong>, present in ~98% of the population), becomes sensitised to fetal platelets carrying paternal HPA-1a, and produces IgG antibodies that cross the placenta and destroy fetal platelets. Critically, <strong>NAIT can affect the first pregnancy<\/strong> (unlike Rh disease) and is the commonest cause of severe thrombocytopenia and intracranial haemorrhage in term neonates. The mother\\'s own platelet count is <em>normal<\/em> (distinguishing it from ITP where maternal platelets are also low). Treatment: <strong>HPA-1a-negative irradiated matched platelets<\/strong> are ideal; <strong>IVIG<\/strong> raises the platelet count when matched platelets are unavailable. Random donor platelets are ineffective.',\n imgId: null\n },\n\n {\n id: 7,\n tag: 'Neonatal Nutrition — Breast Milk in Preterm',\n stem: 'A <strong>28-week male<\/strong> in the NICU is being fed expressed breast milk (EBM) from his mother. The neonatology team considers adding a <strong>human milk fortifier (HMF)<\/strong>. The mother asks why fortifier is needed if breast milk is already the best nutrition. Which statement is MOST CORRECT?',\n correct: 'Preterm infants have higher protein, calcium, and phosphorus requirements per kg than term infants; unfortified breast milk is insufficient for preterm bone mineralisation and growth velocity',\n opts: [\n 'Preterm infants have higher protein, calcium, and phosphorus requirements per kg than term infants; unfortified breast milk is insufficient for preterm bone mineralisation and growth velocity',\n 'Fortifier is added only to increase caloric density — protein and mineral content of breast milk is adequate for all gestations',\n 'Formula is nutritionally superior to fortified breast milk for preterm infants — HMF is a compromise measure only',\n 'Human milk fortifier increases the risk of NEC and should be avoided in infants under 30 weeks'\n ],\n exp: '<strong>Breast milk<\/strong> is unequivocally the preferred feed for preterm neonates — it reduces NEC risk by up to 6-fold compared with formula, provides immune protection (secretory IgA, lactoferrin, oligosaccharides), and improves neurodevelopmental outcomes. However, <strong>unfortified breast milk does not meet the high demands of a preterm infant<\/strong> for protein (3.5–4 g\/kg\/day needed), calcium, and phosphorus required for ex-utero growth velocity matching intrauterine rates. Without fortification, preterm infants develop metabolic bone disease (osteopenia of prematurity) and poor weight gain. <strong>Human milk fortifier<\/strong> adds protein, minerals, and calories to EBM without sacrificing its protective properties. It is a standard of care in all VLBW infants. Donor pasteurised breast milk (from a milk bank) is the next choice when maternal EBM is unavailable.',\n imgId: null\n },\n\n {\n id: 8,\n tag: 'Patent Ductus Arteriosus — Preterm PDA',\n stem: 'A <strong>27-week male<\/strong> on day 5 of life develops <strong>worsening respiratory support requirements, bounding pulses, a hyperdynamic precordium, and a continuous machinery murmur<\/strong>. Echocardiography confirms a <strong>large haemodynamically significant PDA<\/strong> with left-to-right shunting and left atrial dilatation. Initial conservative management (fluid restriction, diuretics) has failed. What is the pharmacological treatment of choice and its mechanism?',\n correct: 'Indomethacin or ibuprofen IV — COX inhibitors reduce prostaglandin E2, which is the primary mediator keeping the ductus open in preterm neonates',\n opts: [\n 'Indomethacin or ibuprofen IV — COX inhibitors reduce prostaglandin E2, which is the primary mediator keeping the ductus open in preterm neonates',\n 'IV digoxin — positive inotrope that reduces left-to-right shunting by improving left ventricular contractility',\n 'Oral sildenafil — PDE5 inhibitor that selectively constricts the ductus by reducing cGMP-mediated vasodilatation',\n 'Subcutaneous octreotide — somatostatin analogue that reduces ductal flow by decreasing pulmonary blood volume'\n ],\n exp: 'The <strong>ductus arteriosus<\/strong> is maintained patent in fetal life by <strong>prostaglandin E2 (PGE2)<\/strong> and low oxygen tension. In preterm neonates, the ductus often fails to close because of higher circulating PGE2 and reduced smooth muscle responsiveness to oxygen. A haemodynamically significant PDA causes a left-to-right shunt → pulmonary overcirculation → worsening respiratory failure, and systemic hypoperfusion (bounding pulses, wide pulse pressure). <strong>Indomethacin<\/strong> (or ibuprofen) inhibits <strong>cyclo-oxygenase (COX)<\/strong>, reducing PGE2 synthesis and allowing ductal constriction. Ibuprofen has fewer renal side effects. <strong>Oral paracetamol<\/strong> is an emerging alternative (inhibits peroxidase component of COX). Surgical ligation is reserved for pharmacological failure. In recent years, conservative management (watchful waiting) is increasingly preferred for smaller, asymptomatic PDAs as many close spontaneously.',\n imgId: null\n },\n\n {\n id: 9,\n tag: 'Congenital Syphilis — Diagnosis & Treatment',\n stem: 'A <strong>term male<\/strong> is born to a mother whose antenatal syphilis serology was reactive (RPR titre 1:64) but who received <strong>no treatment during pregnancy<\/strong>. The neonate has <strong>snuffles (bloody nasal discharge), maculopapular rash involving the palms and soles, hepatosplenomegaly, and periostitis on long bone X-rays<\/strong>. What is the correct treatment?',\n correct: 'Aqueous crystalline benzylpenicillin IV 50,000 units\/kg every 12 hours (first 7 days) then every 8 hours for a total of 10–14 days',\n opts: [\n 'Aqueous crystalline benzylpenicillin IV 50,000 units\/kg every 12 hours (first 7 days) then every 8 hours for a total of 10–14 days',\n 'Single dose IM benzathine penicillin 50,000 units\/kg — adequate for all stages of congenital syphilis',\n 'Oral doxycycline for 14 days — first-line for congenital syphilis when IV access is not possible',\n 'No treatment needed if the neonate is clinically well — treat only if VDRL titre is >4-fold higher than maternal titre'\n ],\n exp: '<strong>Congenital syphilis<\/strong> results from transplacental transmission of <em>Treponema pallidum<\/em>; risk is highest with primary\/secondary maternal syphilis. Early features: snuffles, rash (copper-coloured, involves palms and soles — a hallmark), hepatosplenomegaly, periostitis (Wimberger sign on X-ray), pseudoparalysis of Parrot. Late features (after 2 years): Hutchinson\\'s teeth, interstitial keratitis, saddlenose, sabre tibia. Treatment is <strong>aqueous IV benzylpenicillin<\/strong> for <strong>10–14 days<\/strong> — this achieves adequate CSF levels essential for neurosyphilis coverage. <strong>Single-dose IM benzathine penicillin<\/strong> does <em>not<\/em> achieve adequate CSF levels and is <strong>not acceptable<\/strong> for proven congenital syphilis. Doxycycline is contraindicated in neonates. This neonate has symptomatic congenital syphilis and requires full IV treatment regardless of VDRL titre comparison.',\n imgId: null\n },\n\n {\n id: 10,\n tag: 'Neonatal Abstinence Syndrome — Opioid Withdrawal',\n stem: 'A <strong>term male<\/strong> is born to a mother on <strong>methadone maintenance therapy (80 mg\/day)<\/strong> throughout pregnancy. At 36 hours of life he develops <strong>high-pitched cry, tremors, poor feeding, sneezing, loose stools, and diaphoresis<\/strong>. His Finnegan score is consistently <strong>9–10<\/strong> over three consecutive assessments. What is the correct pharmacological treatment?',\n correct: 'Oral morphine solution (neonatal NAS protocol) — opioid replacement is first-line for NAS; dose titrated against Finnegan score, then weaned over weeks',\n opts: [\n 'Oral morphine solution (neonatal NAS protocol) — opioid replacement is first-line for NAS; dose titrated against Finnegan score, then weaned over weeks',\n 'IV naloxone — opioid antagonist that rapidly reverses withdrawal symptoms in methadone-exposed neonates',\n 'Oral clonidine as monotherapy — alpha-2 agonist that is now first-line for all NAS, replacing opioid replacement entirely',\n 'Phenobarbitone IV — first-line for NAS because methadone is a sedative and phenobarbitone provides cross-tolerance'\n ],\n exp: '<strong>Neonatal Abstinence Syndrome (NAS)<\/strong> results from in-utero opioid exposure (methadone, heroin, buprenorphine); withdrawal typically begins at <strong>24–72 hours<\/strong> for methadone (longer half-life) and 12–24 hours for heroin. The <strong>Finnegan Neonatal Abstinence Scoring Tool<\/strong> assesses 21 items across CNS, metabolic, vasomotor, GI, and respiratory domains; a score ≥8 on two consecutive assessments (or ≥12 once) triggers pharmacological treatment. <strong>Oral morphine solution<\/strong> (or oral methadone at some centres) is first-line opioid replacement — it provides the same receptor class as the original exposure, most effectively controlling symptoms. Dose is titrated upward until the Finnegan score is controlled, then weaned by 10% every 1–2 days. <strong>Clonidine or phenobarbitone<\/strong> are used as <em>adjuncts<\/em> for refractory NAS, not as monotherapy. <strong>Naloxone is absolutely contraindicated<\/strong> in opioid-dependent neonates — it precipitates acute severe withdrawal and seizures.',\n imgId: null\n }\n\n ];\n\n\n var answers = {};\n var answered = 0;\n var shuffled = {};\n var done = false;\n\n function byId(id) { return document.getElementById(id); }\n function gid(suffix) { return byId(NS + '-' + suffix); }\n\n function shuffleArr(arr) {\n var a = arr.slice(), i, j, tmp;\n for (i = a.length - 1; i > 0; i--) {\n j = Math.floor(Math.random() * (i + 1));\n tmp = a[i]; a[i] = a[j]; a[j] = tmp;\n }\n return a;\n }\n\n function countVal(val) {\n var k, n = 0;\n for (k in answers) {\n if (answers.hasOwnProperty(k) && answers[k] === val) n++;\n }\n return n;\n }\n\n function buildPips() {\n var cont = gid('pips'), i, q, wLine, wPip, line, pip;\n cont.innerHTML = '';\n for (i = 0; i < QS.length; i++) {\n q = QS[i];\n if (i > 0) {\n wLine = document.createElement('div');\n wLine.className = 'mr-pip-wrap';\n line = document.createElement('div');\n line.className = 'mr-pip-line';\n line.id = NS + '-pl' + q.id;\n wLine.appendChild(line);\n cont.appendChild(wLine);\n }\n wPip = document.createElement('div');\n wPip.className = 'mr-pip-wrap';\n pip = document.createElement('div');\n pip.className = 'mr-pip';\n pip.id = NS + '-pip' + q.id;\n pip.textContent = String(q.id);\n wPip.appendChild(pip);\n cont.appendChild(wPip);\n }\n }\n\n function build() {\n var cont, i, q, opts, card, top, numDiv, meta, tag, stem,\n rule, optsDiv, expDiv, lbl, txt, j,\n optEl, ltrSpan, txtSpan;\n\n cont = gid('cases');\n cont.innerHTML = '';\n answers = {}; answered = 0; shuffled = {}; done = false;\n gid('score').style.display = 'none';\n buildPips();\n\n for (i = 0; i < QS.length; i++) {\n q = QS[i];\n opts = shuffleArr(q.opts);\n shuffled[q.id] = opts;\n\n card = document.createElement('div');\n card.className = 'mr-case';\n\n top = document.createElement('div');\n top.className = 'mr-case-top';\n\n numDiv = document.createElement('div');\n numDiv.className = 'mr-num';\n numDiv.textContent = q.id < 10 ? 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