ATI RN
ATI Pharmacology Exam 1 Questions
Extract:
Question 1 of 5
What concept is considered when generic drugs are substituted for brand-name drugs?
Correct Answer: A
Rationale: Bioavailability ensures generic drugs deliver the same active ingredient to systemic circulation as brand-name drugs, confirming therapeutic equivalence.
Question 2 of 5
When taking a medication history on a patient, why should the nurse ask about the use of complementary or alternative therapies?
Correct Answer: B
Rationale: Complementary therapies, like herbal supplements, can interact with medications, potentially causing adverse effects or reducing efficacy (e.g., St. John's Wort with antidepressants). Identifying these ensures safe treatment.
Question 3 of 5
The patient is taking low-dose aspirin daily for his heart. The nurse knows only a portion of the medication taken actually reaches the tissue due to what process?
Correct Answer: B
Rationale: The first-pass effect reduces aspirin's systemic availability as the liver metabolizes it after oral administration, decreasing the amount reaching tissues.
Question 4 of 5
A client has a gastrotomy tube in place. The health care provider ordered the medication p.o. Which action would be appropriate for the nurse to take?
Correct Answer: C
Rationale: Clarifying with the provider ensures the medication route is appropriate, as p.o. orders may not suit patients with gastrostomy tubes.
Question 5 of 5
The nurse is caring for a patient who is receiving a high dose of intravenous azithromycin to treat an infection. The patient is also taking acetaminophen for pain. The nurse should expect to review which lab values when monitoring for this drug side effects?
Correct Answer: C
Rationale: Azithromycin and acetaminophen can cause hepatotoxicity, requiring liver enzyme monitoring to detect potential liver damage.