Nokea
Women who are prescribed drugs that are known teratogens should:
- A. Use effective contraception
- B. Avoid breastfeeding
- C. Increase their vitamin intake
- D. All of the above
Correct Answer: A
Rationale: Choice A is correct because teratogenic drugs can harm a fetus, so effective contraception is essential to prevent pregnancy during treatment, per safety guidelines. Choice B is incorrect as breastfeeding avoidance applies post-delivery, not during prescribing. Choice C is wrong because increasing vitamins doesn't mitigate teratogenic risk. Choice D is incorrect since only contraception directly addresses the primary risk.
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Women who are prescribed drugs that are known teratogens should:
- A. Use effective contraception
- B. Avoid breastfeeding
- C. Increase their vitamin intake
- D. All of the above
Correct Answer: A
Rationale: Choice A is correct because teratogenic drugs can harm a fetus, so effective contraception is essential to prevent pregnancy during treatment, per safety guidelines. Choice B is incorrect as breastfeeding avoidance applies post-delivery, not during prescribing. Choice C is wrong because increasing vitamins doesn't mitigate teratogenic risk. Choice D is incorrect since only contraception directly addresses the primary risk.
Over-the-counter drugs that should be avoided in patients with hypertension include:
- A. Acetaminophen
- B. Pseudoephedrine
- C. Ibuprofen
- D. All of the above
Correct Answer: B
Rationale: Choice B is correct because pseudoephedrine, a decongestant, raises blood pressure via vasoconstriction, risky in hypertension, per guidelines. Choice A is incorrect as acetaminophen doesn't affect BP. Choice C is wrong because ibuprofen's BP effect is milder and not absolute avoidance. Choice D is incorrect since only pseudoephedrine is key.
Over-the-counter drugs that should be avoided in patients with hypertension include:
- A. Acetaminophen
- B. Pseudoephedrine
- C. Ibuprofen
- D. All of the above
Correct Answer: B
Rationale: Choice B is correct because pseudoephedrine, a decongestant, raises blood pressure via vasoconstriction, risky in hypertension, per guidelines. Choice A is incorrect as acetaminophen doesn't affect BP. Choice C is wrong because ibuprofen's BP effect is milder and not absolute avoidance. Choice D is incorrect since only pseudoephedrine is key.
An agonist activates a receptor and stimulates a response. When given frequently over time, the body may:
- A. Upregulate the total number of receptors
- B. Block the receptor with a partial agonist
- C. Alter the drug's metabolism
- D. Downregulate the numbers of that specific receptor
Correct Answer: D
Rationale: Choice D is correct because frequent agonist use can cause the body to downregulate receptors, reducing sensitivity to overstimulation as a compensatory mechanism. Choice A is incorrect as upregulation occurs with antagonists, not agonists. Choice B is wrong because partial agonists compete, not result from frequent use. Choice C is incorrect since metabolism changes aren't the primary receptor response.
Drugs that may increase risk of erectile dysfunction include:
- A. Testosterone
- B. Beta blockers
- C. Alpha blockers
- D. All of the above
Correct Answer: B
Rationale: Choice B is correct because beta blockers (e.g., propranolol) can cause erectile dysfunction by reducing blood flow, a known side effect. Choice A is incorrect as testosterone improves erectile function. Choice C is wrong because alpha blockers often treat ED causes. Choice D is incorrect since only beta blockers fit.