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Also known as: Plasma Total Homocysteine; Urine Homocysteine
Formal name: Homocysteine
Related tests: Cardiac risk assessment; serum folate; serum vitamin B12, MTHFR Mutation, Intrinsic Factor Antibody

At a Glance

Why Get Tested?

To find out if you are at high risk of a heart attack or stroke; also used to determine if you are folate-deficient or vitamin B12-deficient as blood homocysteine concentration can be raised in both conditions

When to Get Tested?

If you have had a heart attack or stroke, particularly in the absence of traditional risk factors or as part of a cardiac risk assessment

Sample Required?

A blood sample taken by needle from a vein in the arm

Test Preparation Needed?

You may be instructed to fast for 10 to 12 hours prior to this test