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 C

Explanation

A. The 21-year-old patient who has never had surgery before: While lack of previous surgery experience may contribute to anxiety, it doesn't inherently increase the risk of altered response to anesthesia.
B. The 40-year-old patient who is to have kidney stone removed: While the type of surgery may influence anesthesia considerations, being 40 years old alone doesn't significantly increase the risk of altered response to anesthesia.
C. The 82-year-old patient who is to have gallbladder removal: Advanced age is a significant risk factor for altered response to anesthesia due to age-related changes in physiology, metabolism, and drug clearance.
D. The 35-year-old patient who stopped smoking 8 years ago: While smoking history can impact anesthesia considerations, stopping smoking 8 years ago likely reduces the associated risks compared to current smokers.

A. Constricted pupils B. Increased heart rate C. Bronchial constriction D. Increased GI peristalsis

Correct Answer is B

Explanation

A. Constricted pupils: Adrenergic agonist drugs typically cause pupil dilation (mydriasis), not constriction.
B. Increased heart rate: Adrenergic agonists stimulate the sympathetic nervous system, leading to increased heart rate (positive chronotropic effect) and increased cardiac contractility (positive
inotropic effect).

C. Bronchial constriction: Adrenergic agonists typically cause bronchodilation, not constriction.

D. Increased GI peristalsis: Adrenergic agonists usually inhibit GI motility, leading to decreased GI peristalsis and potentially constipation

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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

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Correct Answer is C

Explanation

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Correct Answer is B

Explanation

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