What does P wave refer in ECG?
The P wave is the first positive deflection on the ECG and represents atrial depolarization. It represents atrial depolarization. Duration: < 0.12 s
NEET 2026 LIVE: UG application form correction window opens; exam dates, pattern
NEET 2026 registration deadline extended to March 11 for MBBS, BDS; exam on May 3
NEET 2026 Registration LIVE: NTA extends MBBS, BDS application deadline to March 11; how to apply
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