Lectus

A 45-year-old patient with diabetes mellitus is admitted to the hospital for elective cholecystectomy. The patient receives insulin as ordered, but due to a medication administration error involving multiple system failures, receives 10 times the prescribed dose and develops severe hypoglycemia requiring intensive care. The attending physician is determining how to approach this adverse event. According to current best practices in medical error management, which of the following approaches most effectively addresses both patient safety and organizational learning?Deselect Answer

During an evaluation of a new diagnostic imaging modality for detecting salivary gland tumors, 90 patients tested positive, out of the 100 patients who tested positive with the gold standard test (with disease, true positives). A total of 80 individuals tested negative with the new test, out of the 100 individuals who tested negative with the gold standard test (without disease, true negatives). What is the positive likelihood ratio for this test?Deselect Answer

A 1-month-old girl is brought to the pediatrician by her parents. They are concerned because she becomes lethargic and irritated between meals. They found that feeding her often with small servings helps. She was born at 39 weeks via spontaneous vaginal delivery and is meeting all developmental milestones. Her mother has 1 brother who occasionally requires blood transfusions. The child's blood pressure is 55/33 mm Hg, heart rate is 120/min, respiratory rate is 40/min, and temperature is 37.0°C (98.6°F). On physical exam, she is slightly jaundiced and appears irritated. Her heart has a regular rate and rhythm, with no abnormal sounds or murmurs, and her lungs are clear to auscultation bilaterally. Her blood work shows normocytic anemia with an elevated reticulocyte count and decreased haptoglobin. Sickle cell anemia and other hemoglobinopathies are also ruled out. A Coombs test is negative. The red blood cell osmotic fragility gap is normal. The physician determined that these findings are related to an enzyme deficiency. Which of the following allosterically inhibits this enzyme?Deselect Answer

A 28-year-old man presents with a 1-week history of penile discharge. He reports painful urination in the mornings, and sometimes feels a lingering pain in his genital region throughout the day. He denies any fever, body aches, or joint pains. Past medical history is insignificant, and he does not take any medications. When asked about social history, he reports frequent intercourse with women he meets in bars and does not always remember to use a condom. Physical exam reveals a thick yellow penile discharge, which is collected and sent for analysis. Ceftriaxone is administered intramuscularly and the patient is sent home with a prescription for an oral medication. Which of the following oral drugs was most likely prescribed?Deselect Answer

A group of public health experts wanted to explore the relationships between the quantity of SARS-COV-2 virus and various pharmaceutical drugs by sampling the influent of a wastewater treatment facility. The Pearson correlation coefficient between the quantity of virus and the concentration of one targeted drug was calculated as -0.11, with a p-value of 0.006 and a 95% confidence interval = [-0.198, -0.0225]. Which of the following statements is the best interpretation of these findings?Deselect Answer

A 21-year-old man presents to his provider for a routine checkup. He says that he has not been ill over the past year, except for one episode of the flu two months ago. He has been training consistently for his college football tournament. His blood pressure is 110/70 mm Hg, pulse is 69/min, and respiratory rate is 17/min. He has a heart sound coinciding with the rapid filling of the ventricles and no murmurs. He does not have any other significant physical findings. Which of the following best describes the heart sound heard in this man?Deselect Answer