Electrocardiograph (ECG) machine being operated by a doctor. This machine is attached by electrodes to a patient's chest and is used to monitor the electrical activity of the patient's heart. The results are recorded by the machine as a trace on moving graph paper (right). The trace can then be used to diagnose the health of the heart and to detect heart diseases and abnormalities which produce a characteristic electrical pattern | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Aj Photo / Hop Americain |
Taille de l’image : | 2266 px × 3454 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |