Nokea
Clinical judgment in prescribing includes:
- A. Factoring in the cost to the patient of the medication prescribed
- B. Always prescribing the newest medication available for the disease process
- C. Handing out drug samples to poor patients
- D. Prescribing all generic medications to cut costs
Correct Answer: S
Rationale: Choice A is correct because clinical judgment involves balancing efficacy, safety, and cost to ensure patients can afford and adhere to treatment, which is critical for successful outcomes. Choice B is incorrect as always choosing the newest medication ignores evidence-based practice; newer drugs may lack long-term data or be unnecessarily expensive. Choice C is wrong because distributing samples isn't a sustainable prescribing strategy and may not meet ongoing needs. Choice D is also incorrect since mandating generics could compromise efficacy if a brand-name drug is clinically necessary.
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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.
Off-label use of drugs is:
- A. Illegal
- B. Regulated by the FDA
- C. Permitted with scientific evidence
- D. All of the above
Correct Answer: C
Rationale: Choice C is correct because off-label use is legal and common, permitted with scientific backing or clinical judgment, not FDA-regulated post-approval. Choice A is incorrect as it's not illegal. Choice B is wrong because FDA doesn't regulate off-label practice. Choice D is incorrect since only C applies.
A patient who has HIV has been receiving a two-drug combination therapy for 6 months. At an annual physical examination, the primary care NP notes that the patient has a viral load of 60 copies/mL and a CD4 cell count of 350 cells/mm. The NP should contact the patient's infectious disease specialist to discuss:
- A. changing one of the medications.
- B. increasing the dose of both medications.
- C. discontinuing the medications for a short period.
- D. adding a third medication.
Correct Answer: B
Rationale: The correct answer is B because a high viral load and low CD4 suggest poor control, often needing dose adjustment. Choice A is incorrect (both should change if switching). Choice C is wrong (discontinuing risky). Choice D is inaccurate (text-based, not an option).
The elderly are at high risk of ADRs due to:
- A. Having greater muscle mass than younger adults, leading to higher volume of distribution
- B. The extensive studies that have been conducted on drug safety in this age group
- C. The blood-brain barrier being less permeable, requiring higher doses to achieve therapeutic effect
- D. Age-related decrease in renal function
Correct Answer: D
Rationale: Choice D is correct because an age-related decline in renal function slows drug excretion, increasing ADR risk as drugs accumulate. Choice A is incorrect as muscle mass decreases with age, not increases. Choice B is wrong because studies are often limited in the elderly, not extensive. Choice C is incorrect since the blood-brain barrier's permeability doesn't typically lessen, and higher doses aren't standard.
Off-label use of drugs is:
- A. Illegal
- B. Regulated by the FDA
- C. Permitted with scientific evidence
- D. All of the above
Correct Answer: C
Rationale: Choice C is correct because off-label use is legal and common, permitted with scientific backing or clinical judgment, not FDA-regulated post-approval. Choice A is incorrect as it's not illegal. Choice B is wrong because FDA doesn't regulate off-label practice. Choice D is incorrect since only C applies.