Q- Which of the following statements correctly describe the lag time of a drug? A- Time from administration of the drug to appearance in blood B- Time from administration of the drug to reaching minimal effect concentration C- Time from administration of the drug to reaching maximal effect concentration. D- Time in which plasma concentration […]
pharmacology
Pharmacology MCQs- 255
Q- Which of the following is the drug of choice of anaphylactic shock? A- Adrenaline B- Diphenhydramine C- Dopamine D- Phenylephrine Q- Alendronate is effective in which one of the following conditions? A- Hypoparathyroidism B- Hyperthyroidism C- Osteoporosis D- Spinal cord lesions Q- Which one of the following drugs is the most effective in improvement […]
Pharmacology MCQs- 254
Q- Which one of the following glucocorticoids can cause sodium and water retention? A- Betamethasone B- Cortisol C- Dexamethasone D- Triamcinolone Q- Which one of the following drugs acts mainly by blocking the synthesis of leukotrienes? A -Cromolyn B- Ipratropium C- Montelukast D- Zileuton Q- Which of the following controls the secretion of thyrotropin? A- […]
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? […]
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 […]
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 […]