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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Related Questions
Correct Answer is C
Explanation
A. A respiratory rate of 14
A respiratory rate of 14 is within the normal range and is not typically a reason to hold benztropine. Respiratory depression is not a common side effect of this medication.
B. A pulse of 102
A pulse rate of 102 is also within the normal range, and changes in heart rate are generally not a prominent side effect of benztropine. This finding alone is not a typical reason to hold the medication.
C. Blood pressure of 88/60 mmHg
This is the correct choice. Anticholinergic medications, like benztropine, can cause side effects such as a decrease in blood pressure. A blood pressure of 88/60 mmHg may be a concern, and the nurse should hold the dose and notify the physician.
D. A temperature of 100.2°F
An elevated temperature of 100.2°F is not a direct contraindication to benztropine administration. Fever is not a typical side effect of this medication, so an increased temperature alone is not a reason to hold the dose.
Correct Answer is D
Explanation
A. Calm the patient to reduce acid production.
This description is not accurate for sucralfate. Calming the patient to reduce acid production is typically associated with medications like proton pump inhibitors (PPIs) or H2 receptor blockers.
B. Block the H2 receptors.
Blocking H2 receptors is the mechanism of action for H2 receptor blockers, such as ranitidine. It is not the mechanism of action for sucralfate.
C. Neutralize the gastric acids.
Neutralizing gastric acids is the mechanism of action for antacids, such as aluminum hydroxide or calcium carbonate. Sucralfate works differently; it forms a protective coating on the gastric lining rather than directly neutralizing acids.
D. Coat the gastric lining.
This is the correct mechanism of action for sucralfate. It forms a protective coating on the gastric lining, adhering to the ulcer site and providing a barrier against gastric acid.
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