When monitoring a patient who is taking a cholinergic drug, the nurse will watch for which cardiovascular effect?
Tachycardia
Palpitations
Vasoconstriction
Bradycardia
The Correct Answer is D
A. Tachycardia is not typically associated with cholinergic drug effects. Cholinergic stimulation tends to slow down the heart rate rather than increase it.
B. Palpitations may occur with certain cardiac arrhythmias or in response to sympathetic stimulation, but they are not typically associated with cholinergic drug effects.
C. Cholinergic drugs are more likely to cause vasodilation rather than vasoconstriction.
Therefore, vasoconstriction is not a common cardiovascular effect of cholinergic drug therapy.
D. Bradycardia is a common cardiovascular effect of cholinergic drug therapy. Cholinergic stimulation slows down the heart rate by increasing parasympathetic activity, particularly at the
sinoatrial (SA) node. Therefore, bradycardia is the cardiovascular effect that nurses should monitor for when administering cholinergic drugs.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. The drug level is at a toxic level, and the dosage needs to be reduced. Phenytoin has a narrow therapeutic range, and levels above 20 mcg/mL are considered to be in the toxic range.
Symptoms of phenytoin toxicity can include nystagmus, ataxia, slurred speech, and confusion. Therefore, if a patient's phenytoin level is 23 mcg/mL, the nurse should be concerned about potential toxicity and consult with the healthcare provider to adjust the dosage.
B. The patient's seizures should be under control if she is also taking a second antiepileptic drug.
While combination therapy with multiple antiepileptic drugs can help control seizures, a phenytoin level of 23 mcg/mL is still concerning for toxicity and requires intervention.
C. The patient is at risk for seizures because the drug level is not at a therapeutic level. A phenytoin level of 23 mcg/mL is actually above the therapeutic range and is more indicative of toxicity rather than subtherapeutic levels.
D. The patient's seizures should be under control because this is a therapeutic drug level. A phenytoin level of 23 mcg/mL is not within the therapeutic range but rather in the toxic range, so the patient may experience symptoms of toxicity rather than having adequate seizure control.
Correct Answer is C
Explanation
A. Take the medication in the morning to prevent insomnia: This instruction is not directly
related to minimizing anticholinergic effects; it's more about managing the timing of medication administration.
B. Use cooling measures to decrease fever: Anticholinergic effects do not typically cause fever, so this instruction is not relevant.
C. Chew sugarless gum to moisten the mouth: Anticholinergic medications can cause dry mouth (xerostomia), and chewing gum can stimulate saliva production, alleviating this side effect.
D. Take an antacid to relieve nausea: Anticholinergic effects can include nausea, but taking an antacid is not a specific strategy for managing this side effect.
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