Q- Which of the following is the correct statement about the difference between a strain and a sprain? A- Strain affects ligaments while sprain affects muscles and tendons B- Strain affects muscles or tendons while sprain affects ligaments C- Strain affects muscles or ligaments while sprain affects tendons D- Strain affects tendons and ligaments while […]
usmle step 1
Pharmacology MCQs- 253
Q- What is the pKa of a drug? A- The pH at which 100% drug becomes completely ionized B- The pH at which 100% drug becomes completely unionized C- The pH at which 50% of the drug is ionized and 50% unionized Q- Which one of the following substances is used to acidify the urine? […]
Repeated USMLE Questions Step 1- 333
Q- Which one of the following parts of fallopian tube is the widest and the most common site for fertilization? A- Ampulla B- Infundibulum C- Isthmus Q- Coagulation factor VIII is produced by which of the following cells? A- Endothelial cells B- Hepatic cells C- Juxtaglomerular cells D- Splenic macrophages Q- Which one of the […]
Pharmacology MCQs- 252
Q- An 80 mg dose of a drug was administered to a patient. 40 mg was eliminated during the first hour. This drug follows first-order elimination kinetics. Which of the following is the amount of the drug remains 3 hours after administration? A- 30 mg B- 20 mg C- 10 mg D- None Q- Which […]
Repeated USMLE Questions Step 1- 332
Q- Which of the following is the most abused drug for all ages in the United States? A- Alcohol B- Cocaine C- Marijuana D- Methamphetamine Q- Which one of the following enzyme deficiencies is related to Tay-Sachs disease? A- Arylsulfatase A deficiency B- Glucocerebrosidase deficiency C- Hexosaminidase A deficiency D- Sphingomyelinase deficiency Q- Which statement […]
Pharmacology MCQs- 251
Q- Which of the following explains the benefit of lactulose in hepatic encephalopathy? A- Lactulose antagonize the action of ammonia on hepatic cells B- Lactulose converts to lactic acid by intestinal bacteria which decreases ammonia C- Lactulose decreases stress of the liver to produce glucose D- Lactulose removes circulating toxins from the blood Q- Which […]