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: 10/29/2018 1:54:16 PM

From the Newsdesk

What is the Personalized Medicine Biobank?
The Nicklaus Children's Hospital biobank and tissue repository is an essential resource for personalized medicine research efforts, enabling the study of both health and disease over time. The Biobank collects samples and health information from volunteers, regardless of health history. Once a participant becomes part of the Biobank, he or she contributes to ongoing health research. We partner with Sanford Health, a national leader on specimen storage, management and integration with participant health information.
What is Genetic Testing?
Dr. Parul Jayakar discusses genetic testing for family planning. Learn more at nicklauschildrens.org/Genetics