Heart Attack Blood Test

What is Heart Attack?

A heart attack (myocardial infarction) occurs when blood flow to part of the heart muscle is blocked, typically by a blood clot in a coronary artery. It is caused by atherosclerotic plaques rupturing in the coronary arteries, triggering clot formation that cuts off oxygen supply to heart tissue. The Liver Function Profile is the most important test for diagnosis because it measures AST (aspartate aminotransferase), a cardiac enzyme released when heart muscle cells are damaged.

RECOMMENDED TEST Liver Function Profile
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What causes a heart attack?

Heart attacks are caused by atherosclerotic plaques in the coronary arteries that rupture and trigger blood clot formation, completely blocking blood flow to part of the heart muscle. These plaques develop over years due to high cholesterol, smoking, high blood pressure, diabetes, and inflammation that damage artery walls. When a plaque ruptures, platelets rush to the site and form a clot that cuts off oxygen supply to heart tissue, causing the muscle cells to die within minutes to hours without treatment.

What is the best test for a heart attack?

The Liver Function Profile is the most important test for heart attack because it measures AST (aspartate aminotransferase), a cardiac enzyme that spills into the bloodstream when heart muscle cells are damaged or dying. This test helps confirm that a heart attack has occurred and assess the extent of cardiac damage. Additional tests like Direct LDL cholesterol help identify risk factors by measuring dangerous cholesterol levels that contribute to plaque formation in coronary arteries. The Protein C Activity and Prothrombin tests evaluate your blood clotting function, which is crucial since excessive clotting in coronary arteries is the final event that triggers most heart attacks.

When should I get tested for a heart attack?

You should get tested immediately if you experience chest pain or pressure, shortness of breath, pain radiating to your jaw or left arm, sudden sweating, nausea, or extreme fatigue. If you have risk factors like high cholesterol, high blood pressure, diabetes, smoking history, or family history of heart disease, regular testing of cardiac risk markers is essential for prevention. Anyone over 40 with multiple risk factors should consider baseline testing of cholesterol and clotting factors to assess their cardiovascular risk before symptoms develop.

What are the symptoms of a heart attack?
Heart attack symptoms include intense chest pain or pressure that feels like squeezing or heaviness, often described as an elephant sitting on your chest. You might experience pain radiating to your left arm, jaw, neck, back, or stomach, along with shortness of breath, cold sweats, nausea, vomiting, lightheadedness, or extreme fatigue. Women sometimes experience atypical symptoms like indigestion, unusual fatigue, or back pain without severe chest pain. Any combination of these symptoms requires immediate emergency medical attention.
Who is at risk for a heart attack?
People at highest risk include those with high cholesterol, high blood pressure, diabetes, obesity, or a family history of heart disease. Smokers and former smokers have significantly elevated risk, as do people who are physically inactive or under chronic stress. Men over 45 and women over 55 face increased risk, though heart attacks can occur at any age. People with inflammatory conditions, sleep apnea, or blood clotting disorders also have higher risk of developing coronary artery disease and experiencing heart attacks.
What happens if a heart attack is left untreated?
Untreated heart attacks cause progressive death of heart muscle tissue, leading to permanent cardiac damage, heart failure, and life-threatening arrhythmias. The longer the heart muscle goes without oxygen, the more tissue dies, reducing the heart's ability to pump blood effectively for the rest of your life. Complications include cardiogenic shock, where the heart cannot pump enough blood to sustain vital organs, and sudden cardiac arrest. Without immediate treatment, a significant portion of heart attacks are fatal within the first hour.
Can a heart attack be diagnosed with a blood test?
Heart attacks are diagnosed with blood tests that measure cardiac enzymes released when heart muscle cells are damaged or destroyed. The Liver Function Profile measures AST levels, which rise rapidly during a heart attack as damaged heart cells release this enzyme into the bloodstream. Blood tests also assess cholesterol levels and clotting factors that contribute to heart attack risk. However, diagnosis combines blood test results with symptoms, electrocardiogram findings, and sometimes imaging studies for a complete picture of cardiac damage.
How is a heart attack treated?
Heart attack treatment focuses on restoring blood flow to the heart muscle as quickly as possible through medications or procedures. Doctors administer clot-busting drugs, aspirin, blood thinners, and medications to reduce heart workload and pain. Many patients undergo emergency angioplasty, where a catheter with a balloon opens the blocked artery and a stent is placed to keep it open. After stabilization, treatment includes medications like statins, beta-blockers, and ACE inhibitors, along with cardiac rehabilitation, lifestyle changes, and ongoing monitoring to prevent future events.
How can I prevent a heart attack?
Prevent heart attacks by controlling risk factors through healthy lifestyle choices and medical management. Maintain healthy cholesterol and blood pressure levels through diet, exercise, and medications if needed. Stop smoking, maintain a healthy weight, exercise for at least 150 minutes weekly, and manage stress effectively. Eat a heart-healthy diet rich in fruits, vegetables, whole grains, and lean proteins while limiting saturated fats, trans fats, and sodium. Regular check-ups with blood tests to monitor cholesterol, blood sugar, and clotting factors allow early intervention before heart disease develops.
What can I do at home for heart attack recovery?
After a heart attack, follow your cardiac rehabilitation program and take all prescribed medications exactly as directed. Gradually increase physical activity under medical supervision, starting with short walks and building endurance over weeks to months. Adopt a Mediterranean-style diet with plenty of vegetables, fruits, whole grains, fish, and olive oil while avoiding processed foods and excessive salt. Manage stress through relaxation techniques, adequate sleep, and support groups. Monitor your symptoms closely and report any chest pain, shortness of breath, or unusual fatigue to your doctor immediately.
How’s this work?
Getting your blood test with us is easy, private & backed by the power of science.

Long story short:
  1. In the test options, use the filters or search box to narrow your choices and find the test you want.
  2. If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test.
  3. Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout.
  4. If this is your first time ordering, you'll be prompted to create a password for instant login access to your patient portal. It's a quick way to conveniently access your orders and results whenever you want.
  5. When you’re ready, visit one of our 4,000 locations. Just bring your ID – no printing or faxing of your lab order is needed, as your order and details will already be in the lab system.
  6. Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way.
  7. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!
  8. If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.
How do I know which test to get?
In the test options, find the test you want. If you’re not sure which test to get, we can lend a hand in finding the right option.

Just text or call us at 754-799-7833, email us at support@privatemdlabs.com, and we'll gladly help you. We've got your back and reply quickly.
Is it possible to make changes to my lab order if I made a mistake with the name, date of birth, or any other details?
Absolutely! We totally understand that errors can happen. No worries, we're here to help you.

Just reach out to us via text at 754-799-7833 or shoot us an email at support@privatemdlabs.com. Remember to include your order number and let us know the correct information you’d like to update. Our awesome team will jump right in and make sure everything is sorted out and accurate for you.

There are no changes necessary if your address is wrong on the requisition though. We don’t mail anything out.

Our lab requires an address to be listed to generate an order.
Do you accept health insurance?
Only HSA & FSA is accepted.

Our services are strictly self-pay and cannot be submitted to your health insurance provider except for Health Savings Accounts or Flexible Savings Accounts.

This policy applies to all insurance companies, including federal health insurance programs like Medicare.

If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com.
Can I cancel my order?
Yes.

We get it – sometimes your needs change.

As long as your samples haven’t been collected yet, we’re happy to help you cancel your order.

If you have any further questions, please text us at 754-799-7833 or email support@privatemdlabs.com.

You can read more about our cancellation policy here.
How can I find a lab location near me?
During the ordering process, you’ll be able to select a specific lab near you, with no strings attached! You can switch it up later easily and visit any of our authorized locations as long as it’s the same lab company you selected your test for (Quest Diagnostics or Labcorp).

Before you proceed with your order, feel free to browse through all our lab locations here. This will give you the peace of mind of knowing that there's a lab nearby your home, office or your favorite gym.

If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.
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* Regular blood test results (e.g., CBC) typically start arriving the next business day after sample collection. More complex tests, such as hormone panels, may take up to 10–15 business days due to their complexity.

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Liver Function Profile
What's included
Fast & easy, results by email & SMS
No need to visit a doctor
Private & confidential
No insurance needed
Results explained
No extra fees paid at the lab

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