Free Questions and Answers for All Medical Students all over the World
Q- Which of the following medications has the narrowest margin of safety due to a small difference between its therapeutic and toxic doses? A- Alprazolam B- Amantadine C- Lithium D- Simvastatin Q- Which one of the following chemotherapeutic agents acts by binding to tubulin and disturbing microtubule polymerization? A- Cyclophosphamide B- Doxorubicin C- … Read more
Q- Which one of the following medications is the most effective in reducing postprandial hyperglycemia in diabetic patients? A- Metformin B- Glargine C- Glipizide D- Repaglinide Q- Which one of the following non-steroidal anti-inflammatory drugs (NSAIDs) is a selective cyclooxygenase-2 (COX-2) enzyme inhibitor? A- Aspirin B- Celecoxib C- Diclofenac D-Ibuprofen Q- Which one … Read more
Q- A 40-year-old woman comes to the physician because of a runny nose, sneezing, and itching eyes on exposure to cats since childhood. Anti-allergy drugs have not provided relief. Her symptoms improve with a program of desensitization involving administration of increasing doses of the allergen. Which of the following is the most likely mechanism of … Read more
Q- A 5-month-old boy is brought to the clinic by his mother because of a 10-day history of “coughing spells” that occur several times daily and last 1 to 2 minutes; he often vomits afterward. He was delivered at term to a 16-year-old patient, gravida 1, para 1, following an uncomplicated pregnancy and spontaneous vaginal … Read more
Q- Which one of the following regional anesthetics can cause methemoglobinemia if given in a large dose? A-Bupivacaine B-Cocaine C-Prilocaine D-Procaine Q- Which of the following is the mechanism of antimicrobial action of cephalosporins? A-Binding to the 30S Ribosomal Subunit B-Inhibition of beta-lactamase C-Inhibition of transpeptidation reactions D-Interference with the synthesis of ergosterol … Read more
Q- which of the following is the most common infectious cause of dilated cardiomyopathy in Central and South America? A- Coxsackievirus B B- Human immunodeficiency virus (HIV) C- Rickettsia D- Trypanosoma cruzi Q- Which of the following is the most sensitive test to order in a suspected case of myocardial sarcoidosis? A- Angiography B- … Read more