The barbiturate phenobarbital is prescribed for a patient with epilepsy. While assessing the patient's current medications, the nurse recognizes that interactions may occur with which drugs? (Select all that apply.)

Oral contraceptives

Antihistamines

Warfarin

Opioids

Diuretics

Answer and Explanation

Correct Answer : A,D,E

A. Oral contraceptives: Phenobarbital can decrease the effectiveness of oral contraceptives, increasing the risk of contraceptive failure and unintended pregnancy.
B. Antihistamines: While phenobarbital can induce hepatic enzymes, leading to increased

metabolism of some antihistamines, this interaction is less clinically significant compared to the interactions with oral contraceptives, opioids, and diuretics.
C.   Warfarin: Phenobarbital can induce the metabolism of warfarin, potentially reducing its anticoagulant effects and necessitating closer monitoring of international normalized ratio (INR) levels.
D.   Opioids: Phenobarbital can increase the metabolism of opioids, leading to reduced analgesic effects and potentially causing inadequate pain control.

E.   Diuretics: Phenobarbital can accelerate the metabolism of diuretics, potentially reducing their efficacy and necessitating adjustments in dosage or monitoring of electrolyte levels.

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Correct Answer is A

Explanation

A. The patient's respiratory rate: Morphine sulfate is an opioid analgesic that can cause

respiratory depression as a side effect. Therefore, assessing the patient's respiratory rate is crucial before administering the medication to ensure it is within normal limits.
B. The appearance of the incision: While assessing the incision is important for overall surgical site assessment, it's not directly related to the administration of morphine sulfate.
C. The date of the patient's last bowel movement: Bowel movements may be impacted by anesthesia and surgery, but they are not directly relevant to assessing the safety of administering morphine sulfate.
D. The patient's pulse rate: Pulse rate is important for overall assessment of the patient's

condition but may not directly indicate the need for or safety of administering morphine sulfate.

A. Do slow position changes to avoid falls from lowering blood pressure." B. if you feel short of breath, use a rescue inhaler. C. "If possible, try to avoid rooms that are cold." D. "Make sure to seek care immediately if you're not able to urinate."

Correct Answer is D

Explanation

A. Do slow position changes to avoid falls from lowering blood pressure: This is not the priority teaching point for an anticholinergic medication. While some anticholinergics can cause orthostatic hypotension, the risk of urinary retention is a more significant concern.
B. If you feel short of breath, use a rescue inhaler: This instruction is unrelated to the use of anticholinergic medication and may be more relevant for patients with emphysema.
C. "If possible, try to avoid rooms that are cold.": Avoiding cold rooms is not directly related to the use of anticholinergic medication. The priority teaching point should address potential adverse effects specific to the medication.
D. "Make sure to seek care immediately if you're not able to urinate.": Anticholinergic medications can exacerbate urinary retention, particularly in older adults with benign prostatic hyperplasia. It's crucial for the patient to understand the importance of seeking medical attention if they experience difficulty urinating.

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The barbiturate phenobarbital is prescribed for a patient with epilepsy. While assessing the patient's current medications, the nurse recognizes that interactions may occur with which drugs? (Select all that apply.)

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A patient had abdominal surgery this morning. The patient is groggy but complaining of severe pain around the incision. What is the most important assessment data to consider before the nurse administers a dose of morphine sulfate to the patient?

Correct Answer is A

Explanation

Correct Answer is D

Explanation

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