F - 8 - Adenosine

Question 1

Adult dose of adenosine for tachycardia.

Answer 1

6 mg rapid IVP, then 12 mg rapid IVP*

*Patients who have required 12 mg for conversion in the past may be given the 12 mg rapid IVP dose first.

Question 2

Pediatric dose of adenosine for tachycardia.

Answer 2

0. 1 mg/kg rapid IVP (max 6 mg)

0. 2 mg/kg rapid IVP (max 12 mg)

Question 3

(True/False) Adenosine may be used in the unstable, narrow complex, regular tachycardia prior to set-up of cardioversion.

Answer 3

True

Question 4

What is the class and MOA of adenosine?

Answer 4

Class V (exact mechanism unknown)
Slows AV nodal conduction, useful in AVNRTs.

Question 5

Class I antidysrhythmics act by what mechanism?

Answer 5

Blocking sodium channels (“-caine” anesthetics)

Question 6

Class II antidysrhythmics act by what mechanism?

Answer 6

Block cathecholamines (epi/NE) on the Beta-1 receptors

• Beta-blockers

Question 7

Class III antidysrhythmics act by what mechanism?

Answer 7

Potassium channel blocker

- Amiodarone

Question 8

Class IV antidysrhythmics act by what mechanism?

Answer 8

Calcium channel blockers (verapamil, diltiazem)