Practice Question
A patient who experiences an adverse effect of a muscarinic antagonist would present with:
Answer Choices:
Correct Answer:
Low urine output
Rationale:
💊 Muscarinic antagonists block acetylcholine at muscarinic receptors in the parasympathetic nervous system
💊 Parasympathetic blockade reduces detrusor muscle contraction in the bladder
💊 This leads to urinary retention and decreased ability to void
💊 Reduced bladder emptying results in low urine output
💊 Urinary retention is a classic anticholinergic (muscarinic antagonist) adverse effect
❌ Incorrect Options
❌ Hypernatremia
❌ Muscarinic antagonists do not directly alter sodium balance
❌ Hypernatremia is usually related to dehydration or endocrine disorders, not anticholinergic effects
❌ Hypovolemia
❌ Hypovolemia involves loss of intravascular fluid volume
❌ Muscarinic antagonists cause urinary retention, not fluid loss
❌Bradycardia
❌ Muscarinic antagonists block vagal tone
❌ This typically causes tachycardia, not bradycardia
Want to practice more questions like this?
This question is from ☑️ Pharmacology Exam-Miami Regional University which contains 84 questions.
More Questions from This Exam
A patient has bacterial endocarditis, and a culture reveals Gram-positive streptococcus. Which antibiotic should the nurse expect to administer because it is a protein-synthesis inhibitor?
Answer Choices:
A patient is taking chemotherapy with a drug that has a high potential for causing nausea and vomiting. The nurse is preparing to administer an antiemetic drug. Which class of antiemetic drugs is most commonly used to prevent nausea and vomiting for patients receiving chemotherapy?
Answer Choices:
A patient who experiences gout has a serum urate level of 5 mg/dL and inadequate urate excretion. Which medication indicated in the treatment of gout is the best choice to improve the excretion of urate for this patient?
Answer Choices:
Which descriptions apply to the market for medicinal herbs in the United States? (Select all that apply.)
Answer Choices:
Which patient assessment findings are clinical indicators of a hypersensitivity reaction to penicillin? (Select all that apply.)
Answer Choices:
From Exam
☑️ Pharmacology Exam-Miami Regional University
84 Questions
View Full Exam Start PracticingQuestion Details
- Category: RN Nursing Exam(s)
- Subcategory: General Exams
- Domain: 🚑Pharmacology
- Answer Choices: 4