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
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. The last dose of medication should be given 4 to 6 hours before bedtime to diminish insomnia: Methylphenidate is a stimulant medication commonly used to treat ADHD.
Administering it at bedtime may interfere with sleep onset and lead to insomnia. It's important to follow the prescribed dosing schedule to optimize symptom control during waking hours while minimizing adverse effects on sleep.
B. The medication should be taken with meals for optimal absorption: While taking
methylphenidate with meals may help reduce gastrointestinal side effects, the timing of administration relative to bedtime is more relevant to address in this scenario.
C. The medication should not be taken until he is at school: Delaying medication until the child is at school may result in inadequate symptom control during the morning when ADHD
symptoms are often most problematic.
D. She is giving him the medication dosage appropriately: Administering methylphenidate at bedtime is not appropriate and may lead to insomnia rather than optimizing symptom control during the day.
Correct Answer is D
Explanation
A. Fever: Fever is not a common adverse effect of haloperidol.
B. Intractable hiccups: While hiccups can occur as a side effect of some medications, they are not a commonly reported adverse effect of haloperidol.
C. Excessive salivation: Excessive salivation is not a typical adverse effect of haloperidol.
D. Extrapyramidal symptoms: Haloperidol, as a first-generation antipsychotic, is known to cause extrapyramidal symptoms such as dystonia, akathisia, parkinsonism, and tardive dyskinesia. Monitoring for these adverse effects is essential during treatment with haloperidol.
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