The antiemetic drug ondansetron (Zofran) is administered to a child receiving chemotherapy. When should the nurse administer this medication?
1. Only if the child experiences nausea
2. After the chemotherapy has been administered
3. Before chemotherapy administration as a prophylactic measure
4. Never; this antiemetic is not effective for controlling nausea and vomiting associated with chemotherapy.
Correct Answer: 3
Rationale: The antiemetic ondansetron (Zofran) should be administered before chemotherapy as a prophylactic measure. Giving it after the child has nausea or at the end of chemotherapy treatment does not help with preventing nausea. It is the drug of choice for controlling nausea caused by chemotherapy agents.
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