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Block 2 Exam 1 > EKG > Flashcards

Flashcards in EKG Deck (15):
1

P waves present
R to R intervals vary with inspiration
Normal finding, usually in younger patients

Sinus arrhythmia

2

P waves negative in inferior leads
P:QRS usually 1:1

Ectopic atrial rhythm

3

Hallmark feature of ectopic rhythm?

Inverted P waves

4

Irregularly irregular rhythm
R to R intervals vary without pattern
NO P waves

Atrial fibrillation

5

Saw tooth P waves

Atrial flutter

6

Regular tachycardia
Narrow QRS complex
Rate ~150bpm

Supraventricular tachycardia

7

P-wave often inverted, may even be under or after QRS
Really slow heart rate

Junctional rhythm

8

PR interval is >200msec but 1:1 conduction is maintained

First degree heart block

9

intermittent dropped ventricular beats due to “block” in the AV node

Increasing PR interval, dropped beat, back to normal

Random, intermittent dropped beat with no PR elongation

Second degree heart block

Type I: Wenckebach

Type II

10

Complete block in the AV node
Atrial and Ventricular rhythms are completely independent

Third degree heart block

11

QRS interval should be less than

120ms

12

How long should QT interval be?

Less than half of R to R interval

13

Left bundle branch block key feature

Weak waves in leads V4-V6

14

R in aVL greater than 11mV
S in V1 or V2 plus R in V5 or V6 greater than 35mV (7 BIG BOXES VERTICALLY)

Left ventricular hypertrophy

15

ST elevation indicative of:
ST depression indicative of:

MI
Ischemia