A 48-year old man presents to the emergency room with severe headache and blurred vision. His blood pressure is 230/140. Ophthalmologic examination reveals blurred optic discs with indistinct margins. An intravenous drip of nitroprusside is started. What is the mechanism of action of this medication? A- Alpha adrenergic antagonist B- Beta adrenergic antagonist C- Ganglion […]
USMLE Step 1
Repeated USMLE Questions Step 1- 262
A 73-year-old man with a history of benign prostatic hyperplasia (BPH) presents to the emergency room complaining of repeated falls. His wife admits that during the past 3 weeks he has had unsteady gait, urinary incontinence and memory disturbances. His medical, surgical and family histories are unremarkable. He has never smoked or taken any recreational […]
Repeated USMLE Questions Step 1- 261
A 43-year old cashier visits her physician with a complaint of severe pain for 3 months and a new onset of itching in her right leg. Examination reveals multiple varicosities on the medial side the right thigh and leg and an erythematous patch on the medial side of the knee. What is the most common […]
Repeated USMLE Questions Step 1- 260
A 53-year-old man visits his physician with a complaint of erectile dysfunction. He is married for 20 years and they have two kids. He had never complained of his sexual performance until last month when he found out that he could not induce a full erection. He has no major health conditions and does not […]
Repeated USMLE Questions Step 1- 259
While you were conducting the morning round in internal medicine department, one of the patients told you that the nurses are insensitive and irresponsible. You asked him for the reason. He said: “they are not good as doctors”. All doctors I’d seen here are sensitive and responsible. Which of these is the most likely defense […]