Intro to Arrhythmia

Question 1

The only normal electrical connection between the atrium and the ventricles

Answer 1

His bundle

Question 2

SA node: __ bpm
Junctional node/AV junction: __ bpm
Ventricle: __ bpm

Answer 2

60-100
40-60
<40

Question 3

When your heart doesn’t increase its heart rate during exercise or effort

Answer 3

Chronotropic incompetence - can start off as normal/slow at rest but does not go above 100bpm even during full exertion (extra CO is needed)

Question 4

Rapid loss of consciousness without prodrome; alternating tachyarrhythmia and sinus pause

Answer 4

Tachycardia-bradycardia syndrome

Question 5

Sinus rhythm with a rate of <50 bpm

Answer 5

Sinus bradycardia

Question 6

T/F: Pauses of <3s are normal in sleeping individuals

Answer 6

True! Sinus pauses >3s during waking hours is abnormal (may be common among athletes accdg to HPIM) , patient may lose consciousness

Question 7

Maneuver that slows down electrical conduction by creating a transient AV block terminating the circuit of the supraventricular tachycardia

What is it for?

Answer 7

Vagal. maneuver - acute management of paroxysmal SVT

e.g. Valsalva maneuver, carotid massage, diving reflex

Question 8

Reentry circuits (tachycardia) are curable: T/F

Answer 8

true

Question 9

Presence of a delta wave in the ECG; due to an accessory pathway that conducts an impulse in an antegrade fashion

Answer 9

Wolff-Parkinson-White (WPW) Syndrome -