Adenosine

Question 1

Indications for adenosine?

Answer 1

❑ Stable, narrow-complex regular tachycardia (SA and AV nodal origin)
❑ Therapeutic and diagnostic maneuver for stable narrow complex SVT (Not AV nodal in origin)
❑ May be considered for: Unstable narrow-complex regular tachycardias while preparations are made for electrical cardioversion
❑ Stable, regular, monomorphic, wide complex tachycardia thought or previously defined to be re-entry SVT with aberrancy

Question 2

Adult dose for adenosine?

Answer 2

1st dose 6 mg rapid IVP; Use a 2nd dose of 12mg after 1-2min IF required. Each dose followed immediately with a 20 mL flush while elevating the arm.

Question 3

Contraindications to adenosine use?

Answer 3

❑ Hypersensitivity to drug or any component
❑ Poisoning / drug induced tachycardia
❑ 2nd or 3rd degree block
❑ Symptomatic bradycardia
❑ Sick sinus syndrome
❑ Atrial fib / flutter; may induce ventricular arrhythmias