EKG 1 Flashcards
1
Q
Sinus rhythm
A
Greater than 60, less than 100 bpm. P for every QRS. Every P and R-R interval is consistent
2
Q
Right atrial enlargement
A
Peaked P wave in II and V1 (greater than 2 boxes)
3
Q
Left atrial enlargement
A
Widened P wave in II and V1 (greater than 3 boxes or 120 sec) or deep negative deflection in V1
4
Q
All narrow complex rhythms
A
originate above the ventricle
5
Q
Not all supra ventricular rhythms
A
are narrow
6
Q
Not all wide complex rhythms
A
are ventricular
7
Q
Supra ventricular tachycardia
A
- Sudden onset
- Rate 120-180 bpm
- Can often see P waves
- ST segment depression common
- P waves often hidden in the QRS or retrograde
8
Q
Sinus tachycardia
A
- Gradual onset
- P waves and no ST depressions
9
Q
Atrial flutter
A
- Atrial rate usually 220-360
- Ventricular rate of 100 or 150
- Discrete P waves in V1/V2
- Sawtooth pattern in inferior leads
10
Q
Atrial flutter with 3:1 condution
A
- Three atrial waves between one ventricular wave
- Ventricular rate is a fraction of the atrial rate
- 3:1 - 100 bpm
11
Q
Accelerated junctional rhythm
A
- Narrow complex rhythm
- QRS duration less than 120 ms
- Rate 60-100 bpm
- Retrograde P waves can be present and may occur before, after or during QRS complex
- P waves inverted in inferior waves
- P waves upright in aVR and V1
- Digoxin effect
- If before QRS, often have very short interval
12
Q
Ventricular tachycardia
A
- Run of three or more PVCs with HR greater than 140
- If greater than 30 seconds, is called sustained VT
- May be slightly irregular
13
Q
Junctional escape
A
40-60 bpm
14
Q
Accelerated junctional
A
70-130 bpm
15
Q
Paroxysmal SVT
A
Greater than 140 bpm
