EKG Normal Values Flashcards
1 small square
0.04 sec
25 small squares
1.0 sec
3 small boxes
0.12 sec
30 larges boxes
6 sec strip
Normal Sinus Rhythm
60 - 100 bpm
P Wave Duration
0.06 - 0.11 sec (< 3 small squares)
P Wave Amplitude
< 2.5 mm height
PR Interval
0.12 - 0.20 sec
QRS Complex
0.06 - 0.12 sec
QT Interval
0.34 - 0.43 sec
ST Segment
0.08 - 0.12 sec
Pathological Q
Infarction; 0.04 wide and > 1/3 height of R wave
T Wave
< 0.5 mV
U Wave
< 2 mm amplitude
Bradycardia
< 60 bpm
Tachycardia
> 100 160 bpm
Atrial Rhythms
Supraventricular Tachycardia
Supraventricular Tachycardia
150 250 bpm; normal or prolonged QRS Complex (> 0.12 sec)
Atrial Flutter
200 - 430 bpm; No Atrial Kick
1st degree AV Block
prolonged PR Interval (> 0.20 sec)
2nd degree AV Block
PRI increasingly prolonged; QRS Complex dropped in repeating pattern
3rd degree AV Block
QRS Complex wide (> 0.12 sec); 30 - 40 bpm; P not r/t RS