Normal Tracing: Difference between revisions

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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]]