Cardio-Abnormal EKG ALA 1 Flashcards Preview

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Flashcards in Cardio-Abnormal EKG ALA 1 Deck (21)
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1
Q

Supraventricular tachycardias have what type of QRS?

A

narrow

2
Q

What two types of SVTs originate in sinus?

A
  1. sinus tachycardia
  2. sinus arrhythmia
3
Q

Which SVT has a heart rate >100, normal rhythm and normal P waves before each QRS complex?

A

sinus tachycardia

4
Q

Which SVT has a normal phenomenon that reflects changes in HR during inspiration and expiration?

A

sinus arrhythmia

5
Q

Which SVT has a regular rhythm, narrow QRS complex, and absent normal P waves?

A

PSVTs

6
Q

What type of AVRT is the most common?

A

Wolf parkinson white (WPW) syndrome

7
Q

What is the accessory pathway for the AVRT WPW?

A

Bundle of Kent

8
Q

Which SVT has no P wave and can be treated with ablation or vagal maneuvers?

A

AVNRT

9
Q

What is a common feature of WPW syndrome?

A

Delta waves and short PR intervals and long QRS due to delta wave, T wave often opposite QRS complex

10
Q

Which SVT has regular rhythm w/ P waves that give a sawtooth appearance?

A

Atrial flutter

11
Q

Which SVT is irregularly irregular rhythm with no P waves?

A

AFIB

12
Q

Which SVT is irregularly irregular w/ P waves?

A

multifocal atrial tachycardia (MAT)

13
Q

Normally, SVTs have a narrow QRS complex except?

A

Antidromic AVRT which conduction pathway is opposite normal conduction. It is wide because the depolarization is going cell by cell.

14
Q

A wide complex QRS antidromic AVRT can be mistaken for V tach, which treatment to use?

A

No AV blockers, use procainamide

15
Q

Is cardioversion more geared toward rate or rhythm control?

A

Rhythm control

16
Q

If you can control , many can cardiovert on their own.

A

rate

17
Q

What 2 leads are best to look at for P waves?

A

V1 and II

18
Q

What is the best way to check QT interval?

A

look for most pronounced QRS

19
Q

What is the difference between normal and poor R wave progression and what could it indicate?

A

Poor R wave progression refers to the absence of the normal increase in size of the R wave in the precordial leads when advancing from lead V1 to V6.

In lead V1, the R wave should be small. The R wave becomes larger throughout the precordial leads, to the point where the R wave is larger than the S wave in lead V4. The S wave then becomes quite small in lead V6.

anterior MI, LV or RV hypertrophy, innacurate lead placement

20
Q

What is meant by aberrancy?

A

Aberrant conduction- BBB, ORS >120ms

21
Q
A