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Which of the following NSAIDs has greater inhibitory selectivity for COX-1 than COX-2?
- A. Flurbiprofen
- B. Indomethacin
- C. Diclofenac
- D. Celecoxib
Correct Answer: B
Rationale: Indomethacin is more selective for COX-1, whereas celecoxib is COX-2 selective; others have mixed activity.
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The treatment of hyperlipidemia with gemfibrozil plus lovastatin is associated with a high risk of:
- A. Constipation
- B. Myopathy
- C. Hepatitis
- D. Thrombocytopenia
Correct Answer: B
Rationale: Combining gemfibrozil and statins increases the risk of myopathy due to elevated statin levels.
What describes the action of a drug on the body?
- A. Pharmacodynamics
- B. Pharmacokinetics
- C. Microbiology
- D. Physiology
Correct Answer: A
Rationale: Pharmacodynamics studies the effects of a drug on the body, including mechanisms of action and therapeutic effects, unlike pharmacokinetics, which focuses on drug movement.
Six-year-old Lucy has recently been started on ethosuximide (Zarontin) for seizures. She should be monitored for:
- A. Increased seizure activity, as this drug may auto-induce seizures
- B. Altered renal function, including renal failure
- C. Blood dyscrasias, which are uncommon but possible
- D. Central nervous system excitement, leading to insomnia
Correct Answer: C
Rationale: Ethosuximide can rarely cause blood dyscrasias, requiring monitoring.
A patient is receiving digoxin as treatment for heart failure. Which of the following would be most important for the nurse to monitor to reduce the risk for toxicity?
- A. Seizure activity
- B. Drug blood level
- C. Urinary output
- D. Blood pressure
Correct Answer: B
Rationale: The nurse should monitor the patient's blood level of the drug to ensure that the level remains within the therapeutic range. Monitoring seizure activity, urination frequency, and blood pressure will not prevent toxicity. Seizure activity is unrelated to digoxin or heart failure.
You are the home health nurse caring for a 77-year-old patient with congestive heart failure. When assessing this patient, in relation to their drug therapy, what is one thing that would be important for you to include in your assessment?
- A. Patient's age
- B. Required lifestyle changes
- C. Family members in the community
- D. Compliance with nutritional recommendations
Correct Answer: B
Rationale: Lifestyle changes (e.g., salt restriction) impact CHF drug therapy efficacy and adherence, critical for assessment.