Q- Which of the following leads to toxic reactions when a drug is taken repeatedly?
A- Absorption disorder
B- Cumulative action
C- Tachyphylaxis
D- Tolerance
B- Cumulative action- Cumulative action occurs when a drug is taken repeatedly, and the body cannot eliminate it fast enough, causing the drug to build up to toxic levels. Absorption disorders, tachyphylaxis, and tolerance do not directly cause toxicity from repeated dosing.
Q- Which one of the following analgesics inhibits COX in the CNS and can be used safely for pregnant women?
A- Acetaminophen
B- Acetylsalicylic acid
C- Ibuprofen
D- Naproxen
A- Acetaminophen- Acetaminophen works mainly by inhibiting COX enzymes in the CNS and is considered the safest analgesic for pregnant women when used in recommended doses. Aspirin, ibuprofen, and naproxen carry fetal risks, especially later in pregnancy.
Q- Which of these medications is the drug of choice in the treatment of severe digitalis intoxication?
A- Bupropion
B- Calcitonin
C- Immune Fab
D- Propranolol
C- Immune Fab- Digoxin (digitalis) toxicity is best treated with digoxin-specific antibody fragments (Digoxin Immune Fab). These antibodies bind circulating digoxin and rapidly reverse life-threatening toxicity. Bupropion, calcitonin, and propranolol have no role in treating digitalis intoxication.
Great Dr. Osman. You can click on the green button to see the correct answer. Thank you so much
1 B
2 A
3 c