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. Improved ability to perform activities of daily living: Antiparkinson medications are aimed at improving motor symptoms such as tremors, rigidity, and bradykinesia, leading to improved function in activities of daily living.
B. Decreased appetite: Decreased appetite is not a therapeutic response to antiparkinson medications. In fact, some medications may cause weight gain due to increased appetite.
C. Newly developed dyskinesias: Dyskinesias are involuntary movements that can occur as a side effect of long-term treatment with antiparkinson medications, particularly levodopa. They are not a therapeutic response and may require adjustments to medication.
D. Gradual development of cogwheel rigidity: Cogwheel rigidity is a symptom of Parkinson's disease and would not be expected to develop gradually with treatment. Antiparkinson
medications aim to reduce rigidity, not cause it.
Correct Answer is D
Explanation
A. Minimize the amount of fluid taken while on this drug: Increasing fluid intake is actually recommended to manage potential constipation, another common side effect of anticholinergic medications.
B. Discontinue the medication if adverse effects occur: Discontinuing medication without consulting a healthcare provider is not advisable. Patients should be educated to report any adverse effects to their healthcare provider for appropriate management.
C. Take the medication on an empty stomach to enhance absorption: Benztropine is typically taken with food to minimize gastrointestinal side effects. Taking it on an empty stomach may increase the risk of nausea or stomach upset.
D. Use artificial saliva, sugarless gum, or hard candy to counteract dry mouth: Anticholinergic medications such as benztropine commonly cause dry mouth as a side effect. Stimulating saliva production with these measures can help alleviate dry mouth symptoms.
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