2nd Lecture ECG Signs Flashcards
Junctional Rhythm
No P wave before QRS
Rate is 40-60. (Intrinsic rate of AV node)
1st degree heart block
PRI prolonged
Possibly from high beta blocker
2nd degree type 1 heart block
P wave before every QRS
Until a P wave stands alone
PRI prolonged until QRS missing
R-R irregular
2nd degree type 2 heart block
No change in PRI
Blocked single conduction to ventricle
R-R irregular
P:QRS is 1:1
3rd degree heart block
P waves have no relation to QRS
30-50 bpm
QRS wide
PVC
QRS wide wide wide
No P wave **
Followed by compensatory pause
Ventricular Tachycardia
No P wave
QRS wide
V rate. 100- 250
V tachycardia V rate
100-250
Does Ventricular Fibrillation have CO?
NO. CO.
NO CARDIAC OUTPUT
Ventricular fibrillation
Wiggles show
Myocardial Ischemia
T wave flat/Inverted
ST segment depression > 1 mm
Infarction vs Ischemia ***
Which has ST elevation
Infarction ST elevation
Infarction vs Ischemia ***
Which has ST depression
Ischemia has ST depression
Transmittal infarction is also called
Q wave infarction
