Biochemical Genetic Test: Homocysteine
Also known as: homocysteine blood test, total homocysteine panel.
What is the biochemical genetic test: homocysteine?
Homocysteine is an amino acid (building blocks for protein production) formed when proteins are broken down. A high homocysteine level in the blood (homocysteinemia) can cause damage to blood vessels (in adults) and may be associated with a high blood pressure and symptoms of Vitamin B-12 or folate deficiency in children. High levels of homocysteine may be due to genetic defects, endocrine abnormalities, sickle cell disease or nutritional factors.
What happens during the procedure?
A small sample of blood is drawn from a vein in the normal way.
Is any special preparation needed?
No special preparation is required for this test.
What are the risk factors?
Pain, infection, bleeding, bruising/swelling, or damage to nearby tissues are uncommon risks associated with venous puncture.
Reviewed by: Jack Wolfsdorf MD.
This page was last updated on: June 21, 2019 01:29 AM