Muscle Relaxant Quiz: Can You Prevent Falls?

1. A post-operative patient on methocarbamol reports dizziness. What environmental modification reduces fall risk?

Dim lighting to promote rest

Bed rails, call bell within reach, clear pathways

Encourage self-ambulation

Administer stimulants

2. What is the most effective nursing strategy to reduce fall risk in patients taking muscle relaxants?

Immobilization and bed rest

Comprehensive fall prevention plan: environment, monitoring, education

Frequent medication administration

Elimination of all physical therapy

3. Which muscle relaxant is preferred for patients with renal impairment?

Baclofen (requires dose adjustment)

Dantrolene

Cyclobenzaprine

Tizanidine

4. A patient reports urinary retention while taking muscle relaxants. What is the likely cause?

Increased fluid intake

Anticholinergic effects and CNS depression

Improved renal perfusion

Medication overdose is impossible

5. Chlorzoxazone is hepatically metabolized. What monitoring is essential for safe use?

Liver function tests and signs of hepatotoxicity

Renal function only

Blood glucose levels

Cardiac enzymes

6. For an elderly patient on muscle relaxants, which vital sign change most directly increases fall risk?

Increased heart rate

Decreased blood pressure upon standing

Elevated temperature

Increased respiratory rate

7. Baclofen withdrawal can cause severe symptoms. What signs indicate acute withdrawal?

Drowsiness and relaxation

Spasticity, hallucinations, and seizures

Increased appetite

Hypertension only

8. A patient is prescribed cyclobenzaprine for muscle spasm. What patient education prevents falls?

Drive safely while taking the medication

Avoid alcohol and use caution with activities requiring alertness

Increase physical activity immediately

Take medication with stimulants

9. What is the typical duration of action for most centrally acting muscle relaxants?

1-2 hours

4-6 hours

12-24 hours

48 hours

10. Which muscle relaxant is contraindicated in patients with acute hepatic disease?

Dantrolene (requires monitoring for hepatotoxicity)

Baclofen

Cyclobenzaprine

Tizanidine

11. What is the primary mechanism of action for centrally acting muscle relaxants like cyclobenzaprine?

Direct inhibition of muscle contraction

Depression of the central nervous system to reduce muscle tone

Block neuromuscular transmission

Inhibition of acetylcholine release

12. Carisoprodol is metabolized into meprobamate, a controlled substance. Why is monitoring important?

Risk of dependence and abuse

Increased muscle strength

Enhanced pain relief

Improved renal function

13. For a patient taking muscle relaxants, which assessment finding suggests acute toxicity?

Mild drowsiness

Loss of consciousness and respiratory depression

Slight muscle twitching

Normal reflexes

14. Tizanidine is an alpha-2 adrenergic agonist. What is a significant side effect affecting fall risk?

Hypertension

Orthostatic hypotension

Increased alertness

Muscle rigidity

15. Which drug interaction is most concerning when combining muscle relaxants with CNS depressants?

Increased effectiveness of antibiotics

Enhanced sedation and respiratory depression

Decreased blood pressure

Elevated liver enzymes

16. A patient on muscle relaxants reports blurred vision and confusion. What is the priority action?

Continue the medication as prescribed

Assess fall risk and notify the provider

Increase fluid intake

Administer an antidote immediately

17. Dantrolene is used for malignant hyperthermia. How does it work?

Blocks calcium release from the sarcoplasmic reticulum

Inhibits central nervous system function

Blocks neuromuscular transmission

Increases muscle metabolism

18. Which nursing intervention is most appropriate to prevent falls in a patient taking muscle relaxants?

Encourage ambulation immediately after administration

Assist with ambulation and use fall prevention devices

Restrict all physical activity

Administer the medication at bedtime only

19. Baclofen is a muscle relaxant commonly used for spasticity. What is its mechanism?

GABA agonist at the spinal cord

Calcium channel blocker

Acetylcholinesterase inhibitor

Dopamine antagonist

20. Which side effect of muscle relaxants poses the greatest fall risk in elderly patients?