Free Questions and Answers for All Medical Students all over the World
Q- Which of the following best describes the mechanism of action of carvedilol in treating high blood pressure? A- Calcium channel blocker in vascular smooth muscle B- Central α₂-adrenergic stimulation C- Nonselective β-adrenergic blockade with α₁-adrenergic blockade D- Selective β₁-adrenergic blockade only Q- Which of the following best describes the mechanism of action of … Read more
Q- A patient with hypertension and gout needs a prescription for a diuretic. Which one of the following drugs should be avoided? A- Amiloride B- Furosemide C- Hydrochlorothiazide D- Spironolactone Q- Which of the following antibiotics is most likely to cause pseudomembranous colitis due to Clostridium difficile? A- Ampicillin B- Ciprofloxacin C- Clindamycin D- … Read more
Q- Which one of the following laboratory tests can differentiate primary aldosteronism from secondary aldosteronism? A- Plasma aldosterone concentration B- Plasma renin activity C- Serum cortisol D- Serum sodium Q- Which one of the following is the most frequent form of pericarditis associated with myocardial infarction? A- Constrictive pericarditis B- Fibrinous pericarditis C- Hemorrhagic … Read more
Q- Routine prophylactic eye antimicrobial therapy is administered to all newborns to prevent blindness caused by which of the following organisms? A- Chlamydia trachomatis B- Cytomegalovirus C- Herpes simplex virus D- Neisseria gonorrhea E- Toxoplasma gondii Q- Which of the following is the most common cause of clonic seizures in the first 24 hours … Read more
Q- Which one of the following diuretics is appropriate to be prescribed for hypertension to a patient with a history of calcium oxalate renal stones? A- Acetazolamide B- Furosemide C- Hydrochlorothiazide D- Spironolactone Q- ACE inhibitors commonly cause a persistent cough. What is most likely the reason for this side effect? A- They … Read more
Q- Which of the following sympathomimetic drugs is the most effective in treating chronic orthostatic hypotension? A- Ephedrine B- Epinephrine C- Norepinephrine D- Salmeterol Q- Which of the following is the mechanism of action of methotrexate? A- Alkylates DNA B- Blocks topoisomerase II C- Inhibits dihydrofolate reductase D- Inhibits thymidylate synthase Q- … Read more