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.
The R wave is normally the easiest waveform to identify on the ECG and represents early ventricular depolarisation. The R wave may be enlarged with ventricular hypertrophy, a thin chest wall or with an athletic physique. It may be reduced by a variety of mechanisms including obesity.