ATI LPN
Pharmacology and the Nursing Process 10th Edition Test Bank
Chapter 21 : Cholinergic-Blocking Drugs Questions
Question 1 of 5
The nurse will monitor for which adverse effect when administering an anticholinergic drug?
Correct Answer: C
Rationale: Anticholinergic drugs commonly cause dry mouth due to reduced salivary secretions. They also cause urinary retention (not excessive urination), decreased sweating (not diaphoresis), and pupillary dilation (not constriction).
Question 2 of 5
The nurse is reviewing a patient's medication history and notes that the patient is taking the cholinergic blocker tolterodine. Which is an indication for this medication?
Correct Answer: C
Rationale:
Tolterodine is used to treat urge incontinence by reducing bladder detrusor overactivity. It is not indicated for irritable bowel disease, mydriasis, or preoperative secretion reduction.
Question 3 of 5
A patient has been taking tolterodine, but today her prescriber changed her to a newer drug, darifenacin. What advantage does darifenacin have over the tolterodine?
Correct Answer: D
Rationale: Darifenacin has a lower incidence of dry mouth due to its specificity for bladder muscarinic receptors over salivary glands. It is not more effective, does not reduce urinary retention, and is contraindicated in narrow-angle glaucoma.
Question 4 of 5
The nurse working in a preoperative admitting unit administers an anticholinergic medication to a patient before surgery. What is the purpose of this drug in the preoperative setting?
Correct Answer: D
Rationale: Anticholinergic drugs are used preoperatively to reduce oral and gastrointestinal secretions, aiding surgical procedures. They do not primarily decrease pain, relax the patient, or reduce urinary frequency.
Question 5 of 5
In preparation for eye surgery, the nurse monitors for which desired drug effect in a patient who is receiving a cholinergic-blocking eyedrop medication?
Correct Answer: B
Rationale: Cholinergic-blocking eyedrops cause mydriasis (pupil dilation) and cycloplegia, which are necessary for eye surgery. They do not cause miosis, increase intraocular fluid, or enhance tear production.