A nurse is caring for a client who has been prescribed ondansetron (Zofran) for postoperative nausea and vomiting. Which of the following is a complication associated with this medication?
Prolonged QT interval
Extrapyramidal symptoms
Nausea
Vomiting
The Correct Answer is A
A. Prolonged QT interval – This is correct. Ondansetron can cause prolongation of the QT interval, increasing the risk of arrhythmias, including torsades de pointes. This is a serious complication that requires monitoring, particularly in clients with cardiac risks.
B. Extrapyramidal symptoms – This is incorrect. Ondansetron does not typically cause extrapyramidal symptoms, which are more associated with dopamine antagonists like metoclopramide or prochlorperazine.
C. Nausea – This is incorrect. Ondansetron is specifically used to treat nausea and vomiting, not to cause them. If nausea persists, it may indicate treatment failure or another underlying issue.
D. Vomiting – This is incorrect. Ondansetron is an antiemetic and works to prevent vomiting. Vomiting would not be a complication of this medication under proper use.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","D"]
Explanation
A. Dimenhydrinate is an antihistamine commonly used to treat motion sickness by reducing the stimulation of the vestibular system.
B. Metoclopramide is not used for motion sickness. Its primary use is for nausea and vomiting caused by conditions such as gastroparesis or chemotherapy, as it works by enhancing gastrointestinal motility.
C. Scopolamine is specifically indicated for motion sickness. It acts as an anticholinergic to reduce the effects of motion on the vestibular system.
D. Ondansetron is not used for motion sickness. It is a serotonin antagonist primarily used to treat nausea and vomiting associated with chemotherapy, radiation, or postoperative recovery.
Correct Answer is ["B","D"]
Explanation
A. Restlessness is not a common side effect of cimetidine. Neurological side effects typically involve sedation or confusion rather than hyperactivity.
B. Lethargy is a potential adverse effect of cimetidine, especially in older adults or those with renal dysfunction, due to the drug’s impact on the central nervous system.
C. Increased libido is not associated with cimetidine. In fact, it may cause decreased libido and sexual dysfunction in some cases.
D. Confusion is a known complication of cimetidine, particularly in elderly clients with impaired renal function, as the drug can accumulate in the body and affect the brain.
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