Q- Which of the following is the mechanism of action of ciprofloxacin? A- Inhibits bacterial protein synthesis through binding with 30 S B- Inhibits DNA gyrase and relaxation of DNA C- Interferes with bacterial cell wall synthesis D- Interferes with bacterial metabolic production Q- Which of the following is the most effective treatment of a […]
repeated usmle questions
USMLE Review- 13
Q- Loss of individual cells by fragmentation of nuclei and cytoplasm caused by a chemotherapeutic agent is produced through which one of the following mechanisms? A- Acute inflammation B- Apoptosis C- Mitochondrial poisoning D- Phagocytosis Q- A newborn presents with absence of the contents of left scrotal sac. There is no other abnormality. Which of […]
USMLE Review- 12
Q- Which of the following is the most common cause of sudden death in patients with diabetes mellitus? A- Cerebral hemorrhage B- Gangrene C- Hyperosmolar coma D- Myocardial infarction Q- Which of the following is the central action of cocaine? A- Inhibition of phosphodiesterase B- Inhibition of reuptake of dopamine and epinephrine C- Inhibition of […]
USMLE Review- 9
Q- Which of the following explains the reason for the formation of atheroma at the bifurcations of arteries such as aorta and carotid? A-Cholesterol breakdown B- Endothelial dysfunction C- Hypoxemia D- Regular blood flow Q- Which of the following findings distinguishes chronic renal failure from acute renal failure? A- High serum calcium B- High serum […]
USMLE Review- 8
Q- Consumption of which of the following products most likely reduces the risk for coronary heart disease in susceptible patients? A- Beef products B- Fish oils C- Saturated fat D- Sugar-free snacks Q- Hemorrhagic cystitis may develop after the use of cyclophosphamide. Which one of the following drugs can reduce this risk? A- Ampicillin B- […]
USMLE Review- 7
Q- Thrombosis of the appendicular artery is significant due to compression by inflammatory edema. This artery arises directly from which of the following arteries? A- Inferior mesenteric artery B- Ileocolic artery C- Right colic artery D- Superior mesenteric artery Q- An autopsy of an adult shows enormous cardiomyopathy, high level of cardiac deposition of glycosphingolipids […]