Summative Exam Questions with Correct answers 2022

Summative Exam Questions with Correct answers 2022 An 80-year-old man was treated for ventricular arrhythmias. He presents 1 month later with joint pain. He also has an unusual mask-like rash over his face and body. Discontinuation of drug therapy causes the symptoms to abate. What drug was most likely administered to this patient? 1 Tocainide 2 Quinidine 3 Procainamide 4 Phenytoin 5 Propranolol Correct Answer Procainamide - often prescribed for long-term control of arrhythmias. May cause lupus like SE. A 62-year-old woman with a long-standing history of hypertension presents with severe headache; it started this morning and is rapidly worsening. During the interview, she suddenly collapses. Your brief examination shows that she responds with extensor posturing on external stimuli. Her deep tendon reflexes are 3, and you elicit Babinski bilaterally. You also notice that her breathing has a peculiar pattern: deep inspiration with a pause at full inspiration, followed by a brief insufficient release and the end-inspiration pause. How do you best describe her respiratory pattern? Answer Choices 1 Cheyne-Stokes 2 Apneusis 3 Ataxic 4 Cluster 5 Central neurogenic hyperventilation Correct Answer Her breathing pattern is apneustic. Apneustic breathing pattern characterizes *deep, gasping inspiration with a pause at full inspiration followed by a brief, insufficient release and the end-inspiration pause before expiration.* What is the mechanism of LMWH? Correct Answer Both unfractionated heparin and low molecular weight Heparin act by *forming a complex with antithrombin III.* A 5-day-old male infant has subtle, unusual facial features (i.e., a triangular face, hypertelorism, and down-slanting eyes). He also has a webbed neck and low-set ears. Suspecting a congenital disorder, you order a complete work-up, including a CBC, coagulation profile, cardiac evaluation, karyotyping, and mutation analysis. PTPN11 (protein-tyrosine phosphatase, nonreceptor-type 11) mutations are detected. Echocardiography detects a cardiac defect. What's most likely to be found on echo? Correct Answer This neonate most likely has Noonan syndrome (NS). Pulmonary stenosis is the most common cardiac defect in this condition.