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ATI LPN · ATI Pharmacology · LPN Nursing Questions Related to Pharmacology

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

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

Expert Explanatory Rationale

Correct Answer: Age-related decrease in renal function

Question 2 of 5

A patient is taking drug A and drug B. The primary care NP notes increased effects of drug B. The NP should suspect that in this case drug A is a cytochrome P450 (CYP450) enzyme:

A. inhibitor.

B. substrate.

C. inducer.

D. metabolizer.

Expert Explanatory Rationale

Correct Answer: inhibitor.

Question 3 of 5

The primary care NP sees a 5-year-old child for a prekindergarten physical examination. The child's parents do not have immunization records, and a local record search does not provide proof of vaccinations, although the parent thinks the child may have had some vaccines several years ago. The NP's initial action will be to:

A. assume the child is unvaccinated and start the full series.

B. check titers for all vaccine-preventable diseases.

C. administer a single dose of each vaccine today.

D. consult state immunization registry again.

Expert Explanatory Rationale

Correct Answer: assume the child is unvaccinated and start the full series.

Question 4 of 5

Drugs that should be avoided in children include:

A. Acetaminophen

B. Aspirin

C. Amoxicillin

D. All of the above

Expert Explanatory Rationale

Correct Answer: Aspirin

Question 5 of 5

The primary care NP sees a 4-year-old child who has received four doses of PCV 7 in the first 15 months of life. The NP should administer:

A. PCV 7.

B. PCV 13.

C. PPV 23.

D. no PCV.

Expert Explanatory Rationale

Correct Answer: PCV 13.

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