Repeated USMLE Questions Step 1- Highlights- 1

Q- Which one of the following anti-arrhythmic medications can cause hemolytic anemia as a side effect?

A- Hydralazine

B- Metoprolol

C- Quinidine

D- Verapamil

C- Quinidine- This side effect is caused by the formation of an immune complex between red blood cells and quinidine causing their hemolysis.

Q- Which one of the following drugs should be used in diabetic patients to relieve the symptoms of gastroparesis?

A- Cimetidine

B- Omeprazole

C- Famotidine

D- Metoclopramide

D- Metoclopramide- Diabetes may cause damage to the nerves innervating the stomach causing gastroparesis. The first line of treatment is metoclopramide as it enhances lower esophageal sphincter to prevent symptoms of this condition.

Q- Which one of the following medications is the most likely prescribed in a case of moderate anxiety with minimum sedative side effects?

A- Buspirone

B- Diazepam

C- Lorazepam

D- Zolpidem

A- Buspirone- It is a non-benzodiazepine anxiolytic and partial agonist at serotonin receptors. It doesn’t have sedative side effects as benzodiazepines.

More Pharmacology MCQs

Check this Review Book for USMLE Step 1

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