ATI LPN
Pharmacology and the Nursing Process 10th Edition Test Bank
Chapter 21 : Cholinergic-Blocking Drugs Questions
Question 1 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 2 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.
Question 3 of 5
A patient has a new prescription for the transdermal form of scopolamine. The nurse knows that this form of scopolamine is used for which condition?
Correct Answer: D
Rationale: Transdermal scopolamine is used to prevent motion sickness by reducing parasympathetic activity affecting the vestibular system. It is not indicated for angina, chronic pain, or hypertension.
Question 4 of 5
The nurse is reviewing the indications for atropine sulfate. Atropine is appropriate for which of these patients? (Select all that apply.)
Correct Answer: A,D,F
Rationale: Atropine is indicated for symptomatic bradycardia, preoperative secretion control, and anticholinesterase poisoning. It is contraindicated in narrow-angle glaucoma and myasthenia gravis, and not used for tachycardia.
Question 5 of 5
A patient is to receive glycopyrrolate 4 mcg/kg IM 30 minutes before a procedure. The patient weighs 220 pounds; the medication is available in a strength of 0.2 mg/mL. Identify how many milliliters of medication the nurse will draw up into the syringe.
Correct Answer: 2 mL
Rationale: Convert 220 pounds to 100 kg (220 ?· 2.2). Calculate dose: 4 mcg/kg ?? 100 kg = 400 mcg = 0.4 mg. For 0.2 mg/mL: 0.2 mg/1 mL = 0.4 mg/x mL; 0.2x = 0.4; x = 2 mL.