Nokea
A patient is diagnosed with histoplasmosis and will begin taking ketoconazole. What information will the nurse include when teaching this patient about this medication?
- A. Take the medicine twice daily
- B. Take the medication with food
- C. You may consume small amounts of alcohol
- D. You will not need lab tests while taking this drug
Correct Answer: B
Rationale: Ketoconazole absorption improves with food; it's once daily, and alcohol or no labs are incorrect. Ketoconazole should be taken with food.
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A 24-year-old female is prescribed erythromycin for gastroparesis. It is prescribed four times daily due to its short half-life. What is the rationale for such a frequent dosing?
- A. Achieve the steady-state plasma concentration of the drug
- B. Aid more complete distribution of the drug
- C. Avoid the toxicity of the drug because of its low therapeutic index
- D. Ensure that the drug concentration remains constant over time
Correct Answer: C
Rationale: Frequent dosing is required due to erythromycin's short half-life and low therapeutic index, which means a narrow margin between effective and toxic doses, necessitating careful maintenance to avoid toxicity.
When assessing a patient before starting a drug regimen, why would the nurse consider it important to assess baseline kidney function?
- A. To anticipate adverse effects of drugs
- B. To determine patient's baseline electrolyte levels
- C. To determine patient's ability to excrete the drug
- D. To determine patient's ability to metabolize the drug
Correct Answer: C
Rationale: Kidney function determines drug excretion, critical for dosing and avoiding toxicity.
Which online drug reference makes available to healthcare providers and the public a standard, comprehensive, up-to-date look up and downloadable resource about medicines?
- A. American Drug Index
- B. American Hospital Formulary
- C. DailyMed
- D. Drug Reference
Correct Answer: C
Rationale: DailyMed makes available to healthcare providers and the public a standard, comprehensive, up-to-date look up and downloadable resource about medicines. The American Drug Index, American Hospital Formulary, and Drug Reference are not designed for public use in this manner.
The drug, which interferes with metabolism of theophylline
- A. Gentamicin
- B. Penicillin
- C. Erythromycin
- D. Sulfonamide
Correct Answer: C
Rationale: Erythromycin inhibits cytochrome P-450, reducing theophylline metabolism.
Rho immune globulin (RhoGAM) is given to:
- A. Infants born to women who are Rh positive
- B. Sexual partners of Rh-positive women
- C. Rh-negative women after a birth, miscarriage, or abortion
- D. Rh-negative women at 36 weeks gestation
Correct Answer: C
Rationale: RhoGAM prevents Rh sensitization in Rh-negative women post-delivery; it's not for infants , partners , or late gestation alone.