Ophthalmologists can play a pivotal role in detection and treatment of life-threatening disorders by recognizing syndromes associated with retinal tumors. Ophthalmologists can play a pivotal role in detection and treatment of life-threatening disorders by recognizing syndromes associated with retinal tumors.
The P wave in the ECG represents atrial depolarization, which results in atrial contraction.
P waves. â¢ The P wave is the first deflection from the baseline at the beginning of the cardiac cycle. â¢ The amplitude of a normal P wave is 0.5 to 2.5 mm and the duration is 0.06 to 0.10 seconds.