Coronary Artery Disease


A blood test for coronary artery disease may or may not require fasting, based on the specific blood test and the lab that is collecting the blood sample.  The lipoprotein (a) blood test, for example, is used to assess risk of coronary artery disease and does not require the patient to fast before giving blood for the test.  However, the total lipid profile blood test panel that assesses risk of coronary artery disease and other heart related health problems does require the patient to fast for 10 to 12 hours.  The individual should take into consideration all of the blood tests that they are taking and if they require fasting. 

Why It Is Used

A blood test for coronary artery disease is used to assess one’s risk of the disease.  The test may be ordered if a patient has a family or personal history of heart disease.  The test may also be ordered if a patient has other risk factors for heart disease such as diabetes, obesity, high blood pressure, or high cholesterol. 

How It Works

The coronary arteries are the primary blood vessels that carry blood to and from the heart.  Coronary artery disease normally develops due to a build-up of plaque, caused by low-density lipoprotein (LDL) cholesterol, or “bad” cholesterol - in the coronary arteries.  When this plaque builds up, it narrows the coronary arteries and obstructs proper blood flow to the heart.  If a coronary artery becomes completely blocked, the blockage can cause a heart attack.  The lipoprotein test is a blood test for coronary artery disease that estimates levels of LDL cholesterols that may have attached to a coronary artery - by simply assessing the level of lipoprotein (a) in the blood.  Lipoprotein (a) is released into the blood when LDL cholesterol attaches to certain proteins in the body.  


High levels of lipoprotein (a) found in the blood indicate that there are also high levels of LDL cholesterol that have attached to proteins.  These proteins may or may not be in the coronary arteries – the test cannot provide information on the location of the LDL cholesterol.  If a high level of lipoprotein is found in the blood, more tests need to be done to further assess risk of heart disease. 

Thank you for browsing our selection of Coronary Artery Disease blood tests and panels. Shop additional Heart Health Tests confidentially and order online without insurance or a doctor's note.


Walk-In Lab is contracted with LabCorp (LC) and Quest Diagnostics (QD) for routine lab testing. Please choose LC or QD to complete your order. If you prefer to receive a kit by mail for specimen collection, select Home Test Kits (KIT). LC, QD and KIT tests must be ordered separately.
LabCorp: Online lab testing is prohibited in MA, MD, NY, NJ and RI.
Quest Diagnostics: Online lab testing is prohibited in NY, NJ and RI.

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  1. Creatine Kinase (CK) Blood Test, MB

    This test will help determine if you have had a heart attack and whether certain clot-dissolving drugs are working.

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  2. Apolipoprotein Assessment Blood Test

    Evaluates risk of cardiovascular disease and includes Apolipoprotein A-1, apolipoprotein B, and apolipoprotein B/A1 Ratio.

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  3. Lipoprotein Phenotyping Profile Blood Test

    A test to evaluate hyperlipidemia (high Cholesterol) to determine abnormal lipoprotein distribution and concentration in the serum.

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  4. Lipoprotein (a) Blood Test

    Measures the level of a particular type of lipoprotein which can increase a person's risk for cardiovascular disease.

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  5. Creatine Kinase (CK) Blood Test, Total

    A CPK test is a blood test used to evaluate levels of creatine kinase (CK), an enzyme released when muscle damage occurs. 

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