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HESI LPN · HESI LPN Pharmacology · HESI Ch 30 principles of pharmacology

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

The following is not correctly matched to its use:

A. Diazepam/muscle spasticity.

B. Midazolam/anesthesia.

C. Clonazepam/epilepsy.

D. Buspirone/panic attack.

Expert Explanatory Rationale

Correct Answer: Buspirone/panic attack.

Question 2 of 5

Which of the following drugs is considered to be the agent of choice for anaphylactic reactions?

A. Clonidine

B. Isoproterenol

C. Epinephrine

D. Phenylephrine

Expert Explanatory Rationale

Correct Answer: Epinephrine

Question 3 of 5

A 17-year-old pregnant female asks her doctor what she can do about her acne. The doctor prescribes a topical benzoyl peroxide preparation, but the patient is unsatisfied with the results. She has a close friend taking a vitamin A-based acne control product, and her friend often tells her how well it works. She begins taking her friend's pills and is pleased with the reduction in her acne. During which prenatal period is her unborn child at greatest risk for developing a birth defect?

A. Before conception, because the drug described is known to cause mutations in the maternal germ cell line

B. Days 1 to 17 after conception

C. Days 18 to 55 after conception

D. Days 56 to birth

Expert Explanatory Rationale

Correct Answer: Days 18 to 55 after conception

Question 4 of 5

A 27-year-old female with vulvovaginal candidiasis is given a one-time $100 \mathrm{mg}$ dose of oral fluconazole. She has no other pertinent medical problems and takes no prescription medications. Administration of the medication results in a peak plasma concentration of $20 \mu \mathrm{g} / \mathrm{mL}$. What is the apparent volume of drug distribution?

A. 0.5 L

B. 1 L

C. 3 L

D. 5 L

Expert Explanatory Rationale

Correct Answer: 5 L

Question 5 of 5

The following antibacterial drug combinations are of accepted benefit in the treatment of the stated infection:

A. Amoxicillin and cefadroxil for lower urinary tract infection in severely ill patients

B. Phenoxymethylpenicillin and tetracycline for acute osteomyelitis in a child under 5 years

C. Isoniazid, rifampicin, pyrazinamide and ethambutol in the initial treatment for pulmonary tuberculosis (TB)

D. Erythromycin and tetracycline for septicaemia

Expert Explanatory Rationale

Correct Answer: Isoniazid, rifampicin, pyrazinamide and ethambutol in the initial treatment for pulmonary tuberculosis (TB)

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