[32] Introduction to Arrythmias Flashcards Preview

[OS 213] CVS Module > [32] Introduction to Arrythmias > Flashcards

Flashcards in [32] Introduction to Arrythmias Deck (18):
1

Dominant Pacemaker of the Heart

Sinoatrial Node

2

When is automaticity not normal?

When a lower pacemaker takes over or when a non-pacemaker cell transforms into a pacemaker cell

3

Do non-pacemaker cells have a fast type or action potential or a slow one?

Fast Type

4

[Slow Type vs. Fast Type]

 

Difference of Channels

Fast Type: Sodium Channels

Slow Type: Calcium Channels

5

Main change to turn a non-pacemaker cell into a pacemaker one

Change in the pervading resting membrane potential

6

Differentiate Focal vs. Re-entrant Arrythmia

Focal: Arrhythmia from a single spot

Re-entrant: Short circuiting

7

Atrial Tachycardia can be defined when ECG shows?

3 Premature Atrial Complexes together

8

Interpret 

 

Q image thumb

Sinus Bradycardia

9

Interpret

 

 

Q image thumb

Sinus Tachycardia

10

Long QT Syndrome is also called?

 

How can you tell if the QT is long?

Torsade de Pointes

 

If it's greater than half of the R interval

11

Can you give Amiodarone in Torsade de Pointes

This is the only KCB that is contraindicated for it, because it causes QT Elongation

12

"Scooped Out" ST Segment is indicative of what Drug?

Chronic Digitalis Therapy

13

Why do you need slow conduction for re-entry to happen?

Time for recovery

14

If you want to unmask flutter waves what do you give?

Adenosine

15

Wolff-Parkinson-White

Widened QRS

Presence of Delta Waves

16

In a third degree AV block why is the P-P interval shorter than the R-R interval?

An escaped pacemaker created a junctional escape rhythm

 

17

[Site of Escape in Complete Heart Block]

AV Node vs Intra His vs Infra His

 

Rate 

AV: 40-50 BPM

Intra-His: 30-40 BPM

Infra-His: 30 BPM

18

[Site of Escape in Complete Heart Block]

AV Node vs Intra His vs Infra His

 

Stability

AV: Stable

 

Intra-His: Stable/Unstable

 

Infra-His: Unstable