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Beta-hexosaminidase activity in whole blood

Published: August 9, 2026Updated: August 16, 2026

This test measures the activity of an enzyme called beta-hexosaminidase, which plays a role in breaking down certain sugars in your blood.

Quick summary

["Beta-hexosaminidase activity helps evaluate enzyme function in blood cells, potentially linked to genetic disorders or metabolic conditions."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
24071-3
Short code
Hexosaminidase B CFr WBC
Synonyms
Hexosaminidase B CFr WBC
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Ref low
4.5
Ref high
11
Critical range
2 N/A – 30 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
85004
SNOMED
900000000000003002
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

Why This Test Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms or a family history suggestive of enzyme-related disorders, such as certain genetic metabolic conditions. It may also be used in research or specialized diagnostic settings.

What to Expect Before the Test

No special preparation is typically required. You may donate a small sample of whole blood, often collected via a simple venipuncture. If you have a history of bleeding disorders or are on blood thinners, discuss this with your provider beforehand.

What the Test Results Mean

Results are interpreted based on enzyme activity levels compared to standard references. Abnormal findings may indicate inherited enzyme deficiencies or other metabolic issues. Your healthcare provider will discuss results in the context of your overall health.

Common Conditions Monitored

While less common, this test may be part of evaluations for rare genetic conditions affecting lysosomal enzyme function, such as certain forms of mucopolysaccharidosis or other storage disorders.

Reference range

Adult: 4.5-11.0 x 10^9/LN/A

Specimen: serum

No special preparation required. Stay well hydrated.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Beta-hexosaminidase activity

Frequently asked questions

What does a beta-hexosaminidase test measure?
This test measures the activity level of the beta-hexosaminidase enzyme in your blood. It helps assess whether your body is producing this enzyme at expected levels, which can be important for diagnosing certain genetic metabolic disorders.
How is the blood sample collected for this test?
A small amount of whole blood is typically collected via a needle inserted into a vein in your arm. The process is usually quick and may involve a slight pinch. If you have a hard time with needles, let your provider know so they can discuss alternatives.
Can this test be used to screen for common conditions like diabetes or high cholesterol?
No, this test is not used to screen for diabetes or high cholesterol. It is specifically related to enzyme activity and is primarily considered in the context of rare genetic disorders affecting lysosomal function.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy