What should be done if a patient’s ECG shows signs of myocardial infarction?

When an ECG shows signs of myocardial infarction, it's crucial to notify the healthcare provider immediately. This action ensures that the patient receives timely and appropriate medical intervention that may be necessary to prevent further damage to the heart and to stabilize the patient's condition.

The healthcare provider may need to order further diagnostic tests, initiate treatment protocols, or provide medications that can help restore blood flow to the heart or manage the symptoms associated with a myocardial infarction. Quick communication in such scenarios is vital, as damage to the heart muscle can progress rapidly without timely care.

The other options, while they may be part of ongoing care depending on the situation, do not address the immediate need for professional medical intervention that is critical in the case of a myocardial infarction. Monitoring the patient for changes or administering medications without a healthcare provider's order could delay life-saving treatment, while CPR is usually a response to a patient who is unresponsive or not breathing, which may not apply in all cases of myocardial infarction.