HealthWise KnowledgeBase
Tay-Sachs Test
Results
The test for Reference Tay-Sachs disease Opens New Window measures the amount of an Reference enzyme Opens New Window called hexosaminidase A (hex A) in the blood.
The normal values listed here—called a reference range—are just a guide. These ranges vary from lab to lab, and your lab may have a different range for what’s normal. Your lab report should contain the range your lab uses. Also, your doctor will evaluate your results based on your health and other factors. This means that a value that falls outside the normal values listed here may still be normal for you or your lab.
|
Enzyme measured |
Normal value Reference 1 |
|
|---|---|---|
|
Amount in blood: |
Total hexosaminidase (A+B) | |
|
Amount in blood: |
Hexosaminidase A |
- A person who has about half the normal amount of hex A is a Tay-Sachs Reference carrier Opens New Window.
- A person who does not have any hex A has Tay-Sachs disease.
- In rare cases, a person may not have either hex A or hex B enzyme. This causes a more severe condition called Sandhoff's disease.
| By: | Reference Healthwise Staff | Last Revised: Reference September 6, 2011 |
| Medical Review: | Reference Sarah Marshall, MD - Family Medicine
Reference Siobhan M. Dolan, MD, MPH - Reproductive Genetics |
|
© 1995-2011, Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Reference Terms of Use. Reference How this information was developed to help you make better health decisions.
