At a Glance
Why Get Tested?
To help evaluate the likely response of a person at risk of a heart attack or stroke to the antiplatelet drug clopidogrel, which helps to prevent harmful blood clots from forming, by detecting variations in the gene (the CYP2C19 gene) that codes for one of the enzymes that metabolizes the drug
When to Get Tested?
A doctor might order this test prior to prescribing clopidogrel for you or during the initial treatment phase, and sometimes when you are taking clopidogrel and are not responding as expected.
A blood sample drawn from a vein in your arm
Test Preparation Needed?