Heart Attack Blood Test

What is Myocardial Infarction (Heart Attack)?

A myocardial infarction (heart attack) occurs when blood flow to part of the heart muscle is blocked, causing tissue damage and cell death. It is caused by coronary artery blockage from atherosclerotic plaque rupture and blood clot formation that prevents oxygen-rich blood from reaching heart tissue. The Creatine Kinase (CK) Total test is the most important test for diagnosis because it detects the enzyme released from damaged cardiac muscle cells.

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What causes a heart attack?

A heart attack is caused by coronary artery blockage that prevents oxygen-rich blood from reaching heart muscle tissue. This blockage typically occurs when atherosclerotic plaques (fatty deposits) in the coronary arteries rupture, triggering blood clot formation that completely blocks the artery. When heart muscle cells are deprived of oxygen for too long, they begin to die, resulting in permanent heart damage if not treated immediately.

What is the best test for a heart attack?

The Creatine Kinase (CK) Total test is the most important test for heart attack diagnosis because it detects elevated levels of the CK enzyme released from damaged cardiac muscle cells into the bloodstream. When heart tissue is injured during a myocardial infarction, CK levels rise significantly within hours and can be measured to confirm heart muscle damage. The OxLDL test is also essential for assessing your cardiovascular risk, as it measures oxidized cholesterol that contributes to plaque rupture and blood clot formation that triggers 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 arm or jaw, sudden cold sweats, nausea, or extreme fatigue. These symptoms require emergency medical attention, and blood tests will be performed to confirm heart muscle damage. If you have survived a heart attack, follow-up testing with CK and OxLDL helps monitor your recovery and assess ongoing cardiovascular risk to prevent future cardiac events.

What are the symptoms of a heart attack?
Heart attack symptoms include intense chest pain or pressure that feels like squeezing or heaviness, pain radiating to the left arm, jaw, neck, back, or stomach, and shortness of breath even at rest. You might experience cold sweats, nausea or vomiting, lightheadedness, and overwhelming fatigue. Some people, especially women, diabetics, and older adults, may have atypical symptoms like indigestion, unusual tiredness, or mild discomfort rather than severe chest pain, making recognition more challenging.
Who is at risk for a heart attack?
People with high cholesterol, high blood pressure, diabetes, and obesity face increased heart attack risk due to accelerated atherosclerosis development. Smokers, people with family history of heart disease, men over 45, and women over 55 are at higher risk. Sedentary lifestyle, chronic stress, poor diet high in saturated fats, and conditions like sleep apnea also elevate your risk. People with elevated OxLDL levels have particularly high risk because oxidized cholesterol directly damages blood vessels and promotes plaque rupture.
What happens if a heart attack is left untreated?
Untreated heart attacks cause progressive death of heart muscle tissue, leading to permanent cardiac damage and heart failure where the heart cannot pump blood effectively. You face increased risk of dangerous heart rhythm abnormalities (arrhythmias), cardiogenic shock where the heart cannot supply enough blood to vital organs, and sudden cardiac death. The longer heart tissue goes without oxygen, the more extensive and irreversible the damage becomes, which is why immediate emergency treatment is critical to minimize permanent heart damage and improve survival.
Can a heart attack be diagnosed with a blood test?
Yes, heart attacks are diagnosed with blood tests that detect cardiac biomarkers released when heart muscle cells are damaged. The Creatine Kinase (CK) test measures enzyme levels that rise within hours of heart muscle injury and remain elevated for several days. Healthcare providers typically order serial blood tests at specific intervals to track how biomarker levels change over time, which helps confirm the diagnosis and assess the extent of heart damage along with ECG findings and clinical symptoms.
How is a heart attack treated?
Heart attack treatment focuses on immediately restoring blood flow to the blocked coronary artery through emergency procedures like angioplasty with stent placement or clot-dissolving medications (thrombolytics). You will receive aspirin, antiplatelet drugs, blood thinners, and medications to reduce heart workload and control blood pressure. Long-term treatment includes cholesterol-lowering statins, beta-blockers, ACE inhibitors, and cardiac rehabilitation with supervised exercise. Lifestyle changes including smoking cessation, heart-healthy diet, regular exercise, and stress management are essential to prevent future cardiac events.
How can I prevent a heart attack?
You can prevent heart attacks by maintaining healthy cholesterol and blood pressure levels through diet, exercise, and medication if needed. Quit smoking, maintain a healthy weight, eat a Mediterranean-style diet rich in fruits, vegetables, whole grains, and omega-3 fatty acids, and exercise for at least 150 minutes weekly. Manage diabetes effectively, reduce stress through relaxation techniques, limit alcohol consumption, and get adequate sleep. Regular screening with blood tests including CK and OxLDL helps identify cardiovascular risk factors early so you can take preventive action before a heart attack occurs.
What can I do at home to support heart health after a heart attack?
After a heart attack, support your recovery by taking all prescribed medications exactly as directed, attending cardiac rehabilitation sessions, and gradually increasing physical activity as your doctor recommends. Monitor your blood pressure and heart rate at home, follow a low-sodium, heart-healthy diet with plenty of vegetables, lean proteins, and healthy fats while avoiding processed foods. Manage stress through meditation, deep breathing, or yoga, ensure 7-8 hours of quality sleep nightly, and avoid tobacco and excessive alcohol. Schedule regular follow-up appointments and blood tests to monitor your cardiac biomarkers and cardiovascular risk factors.
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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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Creatine Kinase (CK), Total, Serum
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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