Normal Tracing: Difference between revisions

Revision as of 11:50, 24 July 2007

Characteristics of a normal ECG:

Rhythm: Sinus Rhythm
Rate: 60-100 bpm
Conduction:
- PQ interval 120-200ms
- QRS width 60-100ms
- QTc interval 390-450ms
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
- 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

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+'''Characteristics of a normal ECG:'''
+* [[Rhythm]]: [[Sinus Rhythm]]
+* [[Rate]]: 60-100 bpm
+* [[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
+* [[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 [[Q waves|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 morphology|ST elevation or depression]]
+**T waves should be [[ST morphology|concordant with the QRS complex]]