Normal Tracing: Difference between revisions

Revision as of 11:52, 24 July 2007

Characteristics of a normal ECG:

P wave morphology:
- The maximal height of the P wave is 2.5 mm in leads II and / or III
- The p wave is positive in II and AVF, and bifasic in V1
- The p wave duration is usually shorter than 0.12 seconds
QRS morphology:
- No pathological Q waves
- No left or right ventricular hypertrophy
- No microvoltations
- Normal R wave propagation. (R waves increase in amplitude from V1-V5)
ST morphology
- No ST elevation or depression
- T waves should be concordant with the QRS complex

@@ Line 1: / Line 1: @@
 '''Characteristics of a normal ECG:'''
-* [[Rhythm]]: [[Sinus node rhythms and arrhythmias|sinus rhythm]]
+# [[Rhythm]]: [[Sinus node rhythms and arrhythmias|sinus rhythm]]
-* [[Rate]]: 60-100 bpm
+# [[Rate]]: 60-100 bpm
-* [[Conduction]]:
+# [[Conduction]]:
 ** [[Conduction#PQ|PQ interval]] 120-200ms
 ** [[Conduction#QRS|QRS width]] 60-100ms
 ** [[Conduction#QT|QTc interval]] 390-450ms
-* [[Heart axis]]: between -30 and +90 degrees
+# [[Heart axis]]: between -30 and +90 degrees
 * [[P wave morphology]]:
 ** The maximal height of the P wave is 2.5 mm in leads II and / or III