Nbme - New Tests |1323 Questions| With Correct Answers.

54-year-old man- severed fingers slicing meat in deli 6 months ago- decreased sensation In fingers- finger was successfully reattached. Exam shows muscle wasting. Which cells is most likely blocking reinnervation of the muscles of this patient's finger? {Ans: Schwann Cells}14-year-old girl with 4 months of heavy menstrual flow. Menarche at 13 with regular intervals. History of frequent nosebleeds and easy bruisability. Father has problems with nosebleeds and clotting. PE shows mild gum bleeding and ecchymoses. Labs: hb 8.2, hct 24.6, platelet 250,000, bleeding time 10, PT 14 (INR 1.5), PTT 60. Dx? {Ans: von Willebrand disease prolonged bleeding time + prolonged PTT =}A 65 year old - bilateral wheezing - accumulation of which of the following? {Ans: Leukotrienes}70-year-old man with early morning awakening, decreased energy, difficulty concentrating, anhedonia, psychomotor retardation, depressed mood for 3 months. He had myocardial infarction and non sustained ventricular tachycardia 2 years ago. Tx? {Ans: Paroxetine SSRIs are first line for depression. Avoid TCAs in elderly = anticholinergic side effects.}A clinical study - evaluate the association of caffeine consumption and pancreatic cancer. In the study alpha is set at 0.05 and beta at .10. Which of the following best describes the likelihood