A client has been newly diagnosed with breast cancer. The client has been prescribed ondansetron (Zofran), but the client is unsure of the indication for this medication. What is your response as a nurse?
This medication is used to treat prolonged QT intervals."
The medication is used for the treatment of extrapyramidal symptoms."
This medication prevents nausea related to chemotherapy
"This medication is used to treat diarrhea.
The Correct Answer is C
A. Ondansetron does not treat QT interval prolongation. It is used to prevent nausea and vomiting, especially in chemotherapy-induced nausea.
B. Ondansetron is not used to treat extrapyramidal symptoms. It is primarily used as an antiemetic.
C. Ondansetron is a 5-HT3 receptor antagonist used to prevent nausea and vomiting, especially related to chemotherapy and radiation treatments.
D. Ondansetron is not used for diarrhea treatment. It is specifically an antiemetic used to treat nausea and vomiting.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. This statement is incorrect because spironolactone is not a loop diuretic and does not act in the loop of Henle. It works in the distal tubules of the kidney.
B. This description is more accurate for thiazide diuretics. Spironolactone works as an aldosterone antagonist and primarily affects sodium and water retention.
C. This description applies to osmotic diuretics like mannitol, not spironolactone.
D. Spironolactone is a potassium-sparing diuretic that works by blocking aldosterone, preventing sodium and water retention, while promoting the retention of potassium.
Correct Answer is A
Explanation
A. The first-pass effect refers to the metabolism of a drug in the liver before it reaches systemic circulation. This primarily affects oral medications, as they are absorbed through the gastrointestinal tract and first pass through the liver.
B. Intravenous (IV) drugs bypass the first-pass effect as they are directly introduced into the bloodstream.
C. Intramuscular (IM) and D. Subcutaneous (SC) routes also bypass the first-pass effect since the drug enters the bloodstream without passing through the liver initially.
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