MODEL RELEASED. Electrocardiogram (ECG) stress test. An elderly male heart patient exercises on a bicycle while a technician monitors his heartbeat on an ECG machine. A sphygmomanometer on the right arm of the patient measures blood pressure. ECG stress tests are used to monitor heartbeat in cases of angina (pain in the chest) or after a heart attack. The patient has six electrodes attached to his chest. The electrodes record the electrical impulses that immediately precede contraction of the heart muscle. The ECG machine displays the patients heartbeat as a moving trace on screen and paper | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Lovegrove, Damien |
Bildgröße: | 4163 px × 4200 px |
Modell-Rechte: | vorhanden |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |