NURS 3550: Pharmacology Final Exam Q
& As (Verified Answers) 2026
Bethanechol is what type of drug (Agonist/antagonist) -
Correct Answers ✅Direct Parasympathetic Agonist
What are Bethanechol's MOA and effects? - Correct
Answers ✅stimulates muscarinic receptors in smooth
muscle, glands and effector organs to mimic the stimulation
of the PNS
CNS: miosis, near vision
CVS: decreased HR, vasodilation to GI, decreased BP
Lungs: bronchoconstriction and increased secretions
GI: increased tone, contractility, increases secretions and
gastric acid, relaxed sphincters
GU: increased tone, contractility, relaxed trigone and
sphincter.
Bethanechol's Therapeutic Indications - Correct Answers
✅1) Urinary retention
2) GI atony
3) Glaucoma
1) relaxes trigone and sphincters making it easier to urinate
2) increases tone and contractility
3) CNS stimulation
,NURS 3550: Pharmacology Final Exam Q
& As (Verified Answers) 2026
Bethanechol's ADRs - Correct Answers ✅confusion,
hypotension, bradycardia, increased salvation and gastric
acid secretion, abdominal cramps, diarrhea, rhinitis, sweating
and incontinence
Bethanechol's Drug Interactions - Correct Answers ✅beta
blockers (d/t bradycardia... check HR), anti-muscarinic drugs
(cancels out effects), antihistamines, and TCAs
Bethanechol's Contraindications - Correct Answers
✅ulcers, intestinal obstructions, recent bowel surgery,
urinary obstruction, asthma, and hyperthyroid conditions.
Atropine is what kind of drug? - Correct Answers ✅General
Muscarinic Antagonist
MOA and Effects - Correct Answers ✅MOA: blocks
muscarinic receptors and prevents access of Ach to the
receptor so it cannot do it's job.
Effects: mimics effects of SNS
CNS- SNS stimulation
CVS: increases HR
GI: decreases activity
Eyes: mydriasis
, NURS 3550: Pharmacology Final Exam Q
& As (Verified Answers) 2026
Lungs: bronchoconstriction
GU: decreases activity
Atropine Therapeutic Indications - Correct Answers ✅1)
Pre-anesthetic medication (drys up secretions)
2) produces mydriasis
3) bradycardia (used to increase HR)
4) intestinal hyperactivity
5) overactive bladder
6) antidote to cholinergic crisis
Atropine ADR's - Correct Answers ✅tachycardia, increased
BP d/t increased HR, constipation, urinary retention,
xerostomia, anhidrosis, blurred vision and photophobia
Atropine Drug Interactions - Correct Answers ✅drugs that
cross react with M-receptors (TCAs, antihistamines), herbal
medications (aloe, sienna), nicotinic antagonists, and
neuromuscular blockers
Atropine Contraindications - Correct Answers ✅acute
angle-closure glaucoma, pulmonary conditions, cardiac
conditions, GI conditions, and cautioned in the elderly
& As (Verified Answers) 2026
Bethanechol is what type of drug (Agonist/antagonist) -
Correct Answers ✅Direct Parasympathetic Agonist
What are Bethanechol's MOA and effects? - Correct
Answers ✅stimulates muscarinic receptors in smooth
muscle, glands and effector organs to mimic the stimulation
of the PNS
CNS: miosis, near vision
CVS: decreased HR, vasodilation to GI, decreased BP
Lungs: bronchoconstriction and increased secretions
GI: increased tone, contractility, increases secretions and
gastric acid, relaxed sphincters
GU: increased tone, contractility, relaxed trigone and
sphincter.
Bethanechol's Therapeutic Indications - Correct Answers
✅1) Urinary retention
2) GI atony
3) Glaucoma
1) relaxes trigone and sphincters making it easier to urinate
2) increases tone and contractility
3) CNS stimulation
,NURS 3550: Pharmacology Final Exam Q
& As (Verified Answers) 2026
Bethanechol's ADRs - Correct Answers ✅confusion,
hypotension, bradycardia, increased salvation and gastric
acid secretion, abdominal cramps, diarrhea, rhinitis, sweating
and incontinence
Bethanechol's Drug Interactions - Correct Answers ✅beta
blockers (d/t bradycardia... check HR), anti-muscarinic drugs
(cancels out effects), antihistamines, and TCAs
Bethanechol's Contraindications - Correct Answers
✅ulcers, intestinal obstructions, recent bowel surgery,
urinary obstruction, asthma, and hyperthyroid conditions.
Atropine is what kind of drug? - Correct Answers ✅General
Muscarinic Antagonist
MOA and Effects - Correct Answers ✅MOA: blocks
muscarinic receptors and prevents access of Ach to the
receptor so it cannot do it's job.
Effects: mimics effects of SNS
CNS- SNS stimulation
CVS: increases HR
GI: decreases activity
Eyes: mydriasis
, NURS 3550: Pharmacology Final Exam Q
& As (Verified Answers) 2026
Lungs: bronchoconstriction
GU: decreases activity
Atropine Therapeutic Indications - Correct Answers ✅1)
Pre-anesthetic medication (drys up secretions)
2) produces mydriasis
3) bradycardia (used to increase HR)
4) intestinal hyperactivity
5) overactive bladder
6) antidote to cholinergic crisis
Atropine ADR's - Correct Answers ✅tachycardia, increased
BP d/t increased HR, constipation, urinary retention,
xerostomia, anhidrosis, blurred vision and photophobia
Atropine Drug Interactions - Correct Answers ✅drugs that
cross react with M-receptors (TCAs, antihistamines), herbal
medications (aloe, sienna), nicotinic antagonists, and
neuromuscular blockers
Atropine Contraindications - Correct Answers ✅acute
angle-closure glaucoma, pulmonary conditions, cardiac
conditions, GI conditions, and cautioned in the elderly
