Electrocardiogram (ECG) illustration showing a normal ECG wave in lead V4. Under normal circumstances, the sinus P wave of lead V4 is upright, the QRS wave is QRS pattern, and the T wave is upright.V3 and V4 chest leads belong to the transition leads. Under normal conditions, the amplitudes of R wave and S wave are equal, which can be seen in these two leads. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / CHONGQING TUMI TECHNOLOGY LTD |
Taille de l’image : | 2800 px × 4667 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |