ATI LPN
Pharmacology and the Nursing Process 10th Edition Test Bank
Chapter 21 : Cholinergic-Blocking Drugs Questions
Question 1 of 5
The nurse is about to administer a stat dose of intravenous atropine sulfate to a patient who is experiencing a symptomatic cardiac dysrhythmia. During administration of this drug, the nurse will monitor the patient closely for which adverse effect?
Correct Answer: A
Rationale: Atropine, a cholinergic blocker, increases heart rate by inhibiting parasympathetic activity, potentially causing tachycardia. It is used to treat symptomatic bradycardia, not cause it, and does not typically lead to ectopic beats or cardiac standstill.
Question 2 of 5
A patient has a prescription for oxybutynin, an anticholinergic drug. When reviewing the patient's medical history, which condition, if present, would be considered a contraindication to therapy with this drug?
Correct Answer: D
Rationale: Uncontrolled angle-closure glaucoma is a contraindication for oxybutynin due to the risk of increased intraocular pressure from pupillary dilation. Neurogenic bladder is an indication for oxybutynin, and diarrhea and hypertension are not contraindications.
Question 3 of 5
The nurse is reviewing the use of anticholinergic drugs. Anticholinergic drugs block the effects of which nervous system?
Correct Answer: D
Rationale: Anticholinergic drugs block acetylcholine in the parasympathetic nervous system, inhibiting its effects. They do not primarily affect the central, somatic, or sympathetic nervous systems.
Question 4 of 5
A patient has received an accidental overdose of intravenous atropine. Which drug will the nurse prepare to administer?
Correct Answer: D
Rationale: Physostigmine is the antidote for atropine overdose, as it inhibits cholinesterase, increasing acetylcholine to counteract anticholinergic effects. Atenolol, bethanechol, and dicyclomine are not appropriate for this situation.
Question 5 of 5
A 72-year-old man has a new prescription for an anticholinergic drug. He is an active man and enjoys outdoor activities, such as golfing and doing his own yard work. What will the nurse emphasize to him during the teaching session about his drug therapy?
Correct Answer: D
Rationale: Anticholinergic drugs decrease sweating, increasing the risk of heat stroke, especially in elderly patients during outdoor activities. Drowsiness, increased salivation, and diarrhea are not typical effects of anticholinergics.