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Lower GI Surgery

Morning Rounds · Lower GI Surgery Crohn's Disease vs Ulcerative Colitis — Surgical Differentiators Feature Crohn's Disease Ulcerative Colitis Distribution Any part mouth to anus; skip lesions Rectum → proximal, continuous; always involves rectum Wall… 

Upper GI Surgery

Morning Rounds · Upper GI Surgery Achalasia — Pathophysiology & Manometric Pattern Feature Normal Achalasia LES tone Normal (15–35 mmHg); relaxes with swallow Elevated (>45 mmHg); fails to relax Oesophageal body Progressive peristaltic contractions Aperistalsis… 

Electrolytes: The Renal Lens

Morning Rounds · Electrolytes — The Renal Lens Hyponatraemia — Diagnostic Framework Serum Osmolality High (>290): Hyperglycaemia Normal (280–290): Pseudohyponatraemia (hyperlipidaemia, hyperproteinaemia) Low (<280): True hyponatraemia Assess volume status + urine Na Hypovolaemic U-Na <20:…