VERAPAMIL G5

Question 1

VERAPAMIL Class

Answer 1

• Calcium channel blocker

Question 2

VERAPAMIL MOA

Answer 2

• Slows AV node conduction
• Shortens the refractory period of accessory pathways
• Acts as a negative inotrope and vasodilator

Question 3

VERAPAMIL Indications

Answer 3

• Stable narrow-QRS tachycardia if the rhythm persists despite vagal maneuvers or adenosine
• To control the ventricular rate in patients with A-fib or A-flutter without preexcitation

Question 4

VERAPAMIL Adult dose

Answer 4

• Initial dose:
  • 2.5 – 5 mg IV/IO SLOWLY (over 2 min., 3 min. in elderly) titrate for effect
• Repeat dose:
  may repeat in 15-30 min. as needed with
  • 5–10mg IV/IO SLOWLY (over 2 – 3 min.) titrate for effect max total dose of 20 mg
• Alternative dose:
  • 5 mg IV/IO SLOWLY every 15 min. until desired effect obtained or max total dose of 30 mg

Question 5

VERAPAMIL Contraindications

Answer 5

• Known hypersensitivity
• Wolff-Parkinson-White or Lown-Ganong-Levine syndromes
• 2nd or 3rd AV heart blocks
• Sick sinus syndrome or other SA node disease unless functioning pacemaker is present
• Hypotension
• Cardiogenic shock
• Severe left-ventricular dysfunction
• Wide-complex tachycardias
• Children younger than 1 year
• Use with caution in patients taking oral beta-blockers

Question 6

VERAPAMIL Adverse effects

Answer 6

• Dysrhythmias
• Decrease myocardial contractility
• Dizziness
• Headache
• Nausea
• Vomiting

Question 7

VERAPAMIL Pediatric dose

Answer 7

Consult med control