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P Wave - EKG Basics


The P wave represents atrial depolarization. This wave is generated by an impulse from the SA node in the right atrium and is conducted across the atria. In a normal EKG, the P-wave precedes the QRS complex. It looks like a small bump upwards from the baseline. The amplitude is normally 0.05 to 0.25mV (0.5 to 2.5 small boxes). Normal duration is 0.06-0.12 seconds (1.5 to 2.75 small boxes). The shape of a P-wave is usually smooth and rounded.

ekg P Wave


Authors and Sources

Authors and Reviewers


Sources




? v:4 | cc: US | tar: False | onAr:0 | onPs:2 | tLb:4 | tLbJs:0
| pv: 1 uStat: False | db:0 | shouldInvoke:False | pu:False | em: | refreshTime: 1/1/0001 12:00:00 AM || now: 3/4/2024 12:21:30 PM | firstPage: True
| statusStg:



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