Tay-Sachs Test

Serum Hexosaminidase A and B

What Affects the Test

Reasons you may not be able to have the test or why the results may not be helpful include:

• Having a recent blood transfusion. If you have a blood transfusion from a blood donor who has normal levels of hexosaminidase A, your level may temporarily be higher than usual.

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Author:	Debby Golonka, MPH	Last Updated: March 31, 2008
Medical Review:	Michael J. Sexton, MD - Pediatrics Siobhan M. Dolan, MD, MPH - Reproductive Genetics
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