A patient is ordered a phenothiazine antiemetic for treatment of nausea and vomiting associated with chemotherapy. The nurse will be evaluating for a positive effect. At what time should the nurse administer the drug?
as requested by the patient.
1 hour after chemotherapy administration.
The night before the treatment, the day of the treatment, and for 24 hours after the treatment.
the day of treatment.
The Correct Answer is C
A. As requested by the patient.
Administering the drug only when requested by the patient may not provide adequate prophylaxis against chemotherapy-induced nausea and vomiting. These medications are often prescribed on a schedule to prevent symptoms rather than treating them reactively.
B. 1 hour after chemotherapy administration.
Waiting until 1 hour after chemotherapy administration may not cover the full period during which nausea and vomiting are likely to occur. The administration schedule for antiemetics is often more extended to provide better coverage.
C. The night before the treatment, the day of the treatment, and for 24 hours after the treatment.
This is the correct choice. Administering phenothiazine antiemetics according to this schedule helps ensure continuous coverage during the critical period when chemotherapy-induced nausea and vomiting are most likely to occur.
D. The day of treatment.
Administering the drug only on the day of treatment may not provide sufficient coverage for the entire duration when chemotherapy-induced nausea and vomiting can occur. Again, the schedule mentioned in option C is more comprehensive for prevention.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. The importance of consuming adequate amounts of water
When instructing a patient who will take psyllium (Metamucil) to treat constipation, it is crucial to emphasize the importance of consuming adequate amounts of water. Psyllium is a bulk-forming laxative that works by absorbing water in the intestines, forming a gel-like mass that helps soften stools and promote bowel movements. Without sufficient water intake, psyllium may cause an obstruction or worsen constipation.
B. The need to monitor for systemic side effects.
Psyllium is generally well-tolerated and is not associated with significant systemic side effects. The primary consideration is ensuring proper hydration.
C. The onset of action of 30-60 minutes after administration.
Psyllium is not a fast-acting laxative. It usually takes a longer time to produce its effects, and patients should not expect an immediate response within 30-60 minutes.
D. The need to use the dry form of psyllium to prevent cramping.
Using the dry form of psyllium is not recommended, as it may increase the risk of choking or swallowing difficulties. It is typically recommended to mix psyllium with a sufficient amount of water or other liquids to prevent cramping and ensure proper absorption.
Correct Answer is C
Explanation
A. Parkinson's disease
Edrophonium is not used for the diagnosis of Parkinson's disease. Parkinson's disease is a neurodegenerative disorder characterized by motor symptoms such as tremors, rigidity, and bradykinesia. The diagnosis is typically based on clinical symptoms and neurological examination.
B. Alzheimer's disease
Edrophonium is not used for the diagnosis of Alzheimer's disease. Alzheimer's disease is a progressive neurodegenerative disorder affecting cognition. The diagnosis involves clinical evaluation, cognitive assessments, and sometimes imaging studies, but not the use of edrophonium.
C. Myasthenia Gravis
This is the correct choice. Edrophonium is used as a diagnostic tool in Myasthenia Gravis. In individuals with Myasthenia Gravis, the administration of edrophonium can lead to a temporary improvement in muscle strength, helping to confirm the diagnosis.
D. Serotonin Syndrome
Edrophonium is not used for the diagnosis of serotonin syndrome. Serotonin syndrome is a condition caused by an excess of serotonin, often due to the use of certain medications. Diagnosis is based on clinical symptoms and a history of serotonin-affecting medications, not the administration of edrophonium.
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