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Flashcards in AVNRT Deck (12)
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1

What percentage of patients present with AVNRT?

60%

2

What is the drug of choice to terminate AVNRT?

Adenosine

3

What are the characteristics of a slow pathway?

slow depolarization
fast repolarization

4

What does an A-H jump beat imply?

antegrade conduction down alpha pathway

5

How does the pulse travel in Typical AVNRT?

Antegrade down alpha
retrograde up beta

6

How does a normal impulse travel through the AV node?

Antegrade down beta
retrograde up alpha

7

Which pathway is the slow pathway?

Alpha

8

Which pathway is the fast pathway?

Beta

9

The AH interval for a jump beat

> 50 msec

10

How is VA interval evaluated through stimulation?

right ventricular pacing

11

What does the QRS complex look like in AVNRT?

narrow

12

What would Atropine do to AV nodal conduction?

increase