Chapter 21: Cholinergic-Blocking Drugs

Chapter 21: Cholinergic-Blocking Drugs

 

Complete Chapter Questions With Answers

 

Sample Questions Are Posted Below

 

MULTIPLE CHOICE

 

1. 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?

a.	Tachycardia
b.	Bradycardia
c.	Ectopic beats
d.	Cardiac standstill

 

 

ANS:  A

Cardiovascular effects of cholinergic blockers include increased heart rate and dysrhythmias. One indication for use is the treatment of sinus bradycardia accompanied by hemodynamic compromise. The other options are incorrect.

 

DIF:    COGNITIVE LEVEL: Applying (Application)                  REF:   p. 333

TOP:   NURSING PROCESS: Evaluation

MSC:  NCLEX: Physiological Integrity: Pharmacological and Parenteral Therapies

 

2. A patient has a prescription for oxybutynin (Ditropan), an anticholinergic drug. When reviewing the patient’s medical history, which condition, if present, would be considered a contraindication to therapy with this drug?

a.	Diarrhea
b.	Hypertension
c.	Neurogenic bladder
d.	Uncontrolled angle-closure glaucoma

 

 

ANS:  D

Contraindications include drug allergy, urinary or gastric retention, and uncontrolled angle-closure glaucoma. Neurogenic bladder is an indication for oxybutynin. The other options are incorrect.

 

DIF:    COGNITIVE LEVEL: Applying (Application)                  REF:   p. 334

TOP:   NURSING PROCESS: Assessment

MSC:  NCLEX: Physiological Integrity: Pharmacological and Parenteral Therapies

 

3. The nurse is reviewing the use of anticholinergic drugs. Anticholinergic drugs block the effects of which nervous system?

a.	Central nervous system
b.	Somatic nervous system
c.	Sympathetic nervous system
d.	Parasympathetic nervous system

 

 

ANS:  D

Anticholinergic drugs block or inhibit the actions of acetylcholine in the parasympathetic nervous system. The other options are incorrect.

 

DIF:    COGNITIVE LEVEL: Remembering (Knowledge)           REF:   p. 331

TOP:   NURSING PROCESS: General

MSC:  NCLEX: Physiological Integrity: Pharmacological and Parenteral Therapies

 

4. A patient has received an accidental overdose of intravenous atropine. Which drug will the nurse prepare to administer?

a.	Atenolol (Tenormin)
b.	Bethanechol (Urecholine)
c.	Dicyclomine (Bentyl)
d.	Physostigmine (Antilirium)

 

 

ANS:  D

Physostigmine salicylate is the antidote to an atropine overdose in patients who show extreme delirium or agitation and could inflict injury to themselves. Its routine use as an antidote for cholinergic-blocker overdose is controversial, however. The other options are incorrect choices.

 

DIF:    COGNITIVE LEVEL: Understanding (Comprehension)    REF:   p. 333

TOP:   NURSING PROCESS: Planning

MSC:  NCLEX: Physiological Integrity: Pharmacological and Parenteral Therapies