The evaluation of a myocardial infarction begins with a history and physical examination.

Physical findings in someone with a myocardial infarction may include:

• Congested lungs:
• During examination with a stethoscope
• Excessive sweating
• Heart murmur
• Rapid pulse
• Abnormally slow pulse:
• Less than 60 beats per minute
• High blood pressure
• Low blood pressure
• Irregular heartbeat
• Foot swelling (bilateral)
• Leg swelling (bilateral)
• Swelling of the veins in the neck
• Xanthelasma
• Creased ear lobe

Testing is necessary to confirm the diagnosis of myocardial infarction.

Tests that may be used to evaluate a myocardial infarction include:

• Cardiac enzymes
• Troponin level
• C-reactive protein
• Cholesterol level
• Triglyceride level

Additional tests that may be used to evaluate a myocardial infarction include:

• Chest x-ray:
• Normal chest x-ray
• Heart failure
• EKG
• Exercise stress test
• Cardiac catheterization
• Echocardiogram
• Intracoronary ultrasound:
• Shows images of the inside of coronary arteries
• MRI scan of the heart:
• Shows detailed images of the heart and coronary arteries
• Detects structural abnormalities of the heart
• SPECT scanning of the heart:
• Detects blood flow abnormalities to heart muscle
• Thallium heart scan
• Coronary artery CT scanning:
• Checks for possible obstructions in the coronary arteries
• Can show a build-up of calcium in a coronary artery
• MUGA scan