Myocardial infarction is a serious heart disease, and when a patient faints, it indicates that the condition is already quite critical, in which case, pressing on the person does not play a life-saving role.
For patients with myocardial infarction, the correct course of action should be to call the emergency number immediately and seek help from a medical professional. While waiting for rescue, you can try to keep the patient lying flat, loosen the collar, and keep breathing smooth, but do not perform unprofessional first aid operations at will to avoid aggravating the condition.
If trained to do effective chest compressions and rescue breaths on site, an automated external defibrillator (AED) can be used where possible, and follow its instructions until a professional arrives at the scene.
Compressions are not effective in restoring heart function or providing adequate blood flow to the heart, and patients with myocardial infarction should receive professional medical care and appropriate cardiopulmonary resuscitation as soon as possible.
