Skip to content

Health & Baby

Font Size
A
A
A

Tay-Sachs Test

What Affects the Test

If you had a recent blood transfusion, you may not be able to have the test, or the test results may not be helpful. 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.

What To Think About

  • A positive Tay-Sachs test may need to be confirmed with other genetic tests. To learn more, see the topic Genetic Test.
  • People who have a high chance of being a carrier of Tay-Sachs may want to have a blood test before they have children, to see whether they are carriers. People of Ashkenazi Jewish, French-Canadian, or Cajun descent, or those who have a family history of Tay-Sachs disease or who live in a community or population with a high amount of Tay-Sachs disease may want to be tested. Genetic counseling is available for people who have the disease or are carriers.
  • Before you have testing for a genetic disease such as Tay-Sachs disease, you may want to learn about possible ethical, legal, and religious issues of genetic testing.

Citations

  1. Fischbach FT, Dunning MB III, eds. (2009). Manual of Laboratory and Diagnostic Tests, 8th ed. Philadelphia: Lippincott Williams and Wilkins.

Other Works Consulted

  • Pagana KD, Pagana TJ (2010). Mosby’s Manual of Diagnostic and Laboratory Tests, 4th ed. St. Louis: Mosby Elsevier.

By Healthwise Staff
Primary Medical Reviewer Sarah Marshall, MD - Family Medicine
Specialist Medical Reviewer Siobhan M. Dolan, MD, MPH - Reproductive Genetics
Current as of March 12, 2014
1 | 2 | 3

WebMD Medical Reference from Healthwise

Last Updated: March 12, 2014
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

Today on WebMD

mother on phone holding baby
When you should call 911.
Mother with baby
Unexpected ways your life will change.
 
baby acne
What’s normal – and what’s not.
baby asleep on moms shoulder
Help your baby get the sleep he needs.
 

mother holding baby at night
ARTICLE
mother with sick child
QUIZ
 
baby with pacifier
VIDEO
Track Your Babys Vaccines
TOOL
 
Baby Napping 10 Dos And Donts
Slideshow
Woman holding feet up to camera
Article
 
Father kissing newborn baby
Article
baby gear slideshow
Slideshow