ATI LPN
Pharmacology and the Nursing Process 10th Edition Test Bank
Chapter 21 : Cholinergic-Blocking Drugs Questions
Question 1 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 2 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 3 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.
Question 4 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 5 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.