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Flashcards in AVNRT Deck (12)
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1
Q

What percentage of patients present with AVNRT?

A

60%

2
Q

What is the drug of choice to terminate AVNRT?

A

Adenosine

3
Q

What are the characteristics of a slow pathway?

A

slow depolarization

fast repolarization

4
Q

What does an A-H jump beat imply?

A

antegrade conduction down alpha pathway

5
Q

How does the pulse travel in Typical AVNRT?

A

Antegrade down alpha

retrograde up beta

6
Q

How does a normal impulse travel through the AV node?

A

Antegrade down beta

retrograde up alpha

7
Q

Which pathway is the slow pathway?

A

Alpha

8
Q

Which pathway is the fast pathway?

A

Beta

9
Q

The AH interval for a jump beat

A

> 50 msec

10
Q

How is VA interval evaluated through stimulation?

A

right ventricular pacing

11
Q

What does the QRS complex look like in AVNRT?

A

narrow

12
Q

What would Atropine do to AV nodal conduction?

A

increase