A patient has had an overdose of an intravenous cholinergic drug. The nurse expects to administer which drug as an antidote?

Dobutamine

Atropine sulfate

Atenolol

Bethanechol

Answer and Explanation

The Correct Answer is B

A.   Dobutamine is a sympathomimetic drug used to increase cardiac output in conditions such as heart failure. It is not an antidote for cholinergic drug overdose.
B.   Atropine sulfate is the antidote for cholinergic drug overdose. It acts as a competitive antagonist to acetylcholine at muscarinic receptors, counteracting the effects of excessive cholinergic stimulation.
C.   Atenolol is a beta-blocker used to manage hypertension and certain cardiac conditions. It is not an antidote for cholinergic drug overdose.
D.   Bethanechol is a cholinergic agonist used to stimulate bladder contractions in urinary retention. It is not an antidote for cholinergic drug overdose; in fact, it would exacerbate cholinergic effects.

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Correct Answer is B

Explanation

A. Assessing the WBC count is not directly related to the administration of a nonselective adrenergic blocker. These medications primarily affect the cardiovascular system.
B. Assessing pulse and blood pressure is crucial before administering a nonselective adrenergic blocker. These medications can cause bradycardia and hypotension as side effects, so it's
important to ensure the client's baseline pulse and blood pressure are within acceptable ranges before giving the medication.
C. Assessing bowel sounds is not directly related to the administration of a nonselective adrenergic blocker. These medications primarily affect the cardiovascular system.
D. Assessing serum sodium and potassium levels is not directly related to the administration of a nonselective adrenergic blocker. These medications primarily affect the cardiovascular system.

A. Oral contraceptives B. Antihistamines C. Warfarin D. Opioids E. Diuretics

Correct Answer is ["A","D","E"]

Explanation

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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A patient has had an overdose of an intravenous cholinergic drug. The nurse expects to administer which drug as an antidote?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Before administering a client's prescribed nonselective adrenergic blocker, what should the nurse assess?

Correct Answer is B

Explanation

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.)

Correct Answer is ["A","D","E"]

Explanation

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