Adenosine

Question 1

Adenosine Class

Answer 1

Antidysrhythmic

Question 2

Adenosine MOA

Answer 2

Activates potassium channels, driving potassium outside of cells (causing hyperpolarization of the resting membrane), and inhibits calcium influx (causing suppression of calcium-dependent action potentials), which slows conduction times.
Can interrupt reentry pathways in the AV node.

Question 3

Adenosine Indication

Answer 3

Symptomatic SVT

Question 4

Adenosine Contraindications (3)

Answer 4

Heart blocks
Active bronchospasm
Irregular or polymorphic wide complex tachycardia

Question 5

Adenosine Adult Dose

Answer 5

12mg rapid IVP BHO repeat

Question 6

Adenosine Pregnancy classification

Answer 6

C (harmful to animals, not tested in humans)

Question 7

Adenosine Peds Dose

Answer 7

BHO 0.2mg/kg max 12mg