ECG Waves

Hi I would like to have a brief about ECG Wave as well as the different forms of ECG waves & brief about these wave forms?

[Pathak]

An typical ECG following is a rehashing cycle of three electrical substances: a P wave (atrial depolarization), a QRS complex (ventricular depolarization) and a T wave (ventricular repolarization).

ECG Waveforms

Every part of a pulse delivers an alternate redirection on the ECG. These redirections are recorded as a progression of positive and negative waves. On an ordinary ECG, there are commonly up to five obvious waveforms:

• the P wave,
• the Q wave,
• the R wave,
• the S wave and
• the T wave.

The P Wave
The main redirection of the pulse is a little upward wave called the P wave. It demonstrates atrial depolarisation.

The Q Wave
Whenever unmistakable, the Q wave is any underlying descending redirection after the P wave. The typical Q wave speaks to septal depolarisation.

The R Wave
The R wave is the primary upward redirection after the P wave (notwithstanding when Q waves are truant). The R wave is typically the most straightforward waveform to distinguish on the ECG and speaks to ahead of schedule ventricular depolarisation.

The S Wave
The S wave is the principal negative diversion after the R wave. It speaks to the late ventricular depolarisation.

The T Wave
The T wave speaks to repolarisation of the ventricles. It is typically upright, to some degree adjusted, and somewhat awry. Its morphology will modify with breath holding and digitalis poisonous quality.