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Lysosomal enzyme activity in serum (e.g., β-glucosidase or other lysosomal hydrolase activity)

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

This test measures the activity of enzymes found in lysosomes, tiny cell structures that break down waste materials. It may be used to diagnose or monitor conditions affecting lysosomal function.

Quick summary

["This test helps assess lysosomal enzyme activity, which can indicate genetic disorders or other conditions affecting cellular waste processing."]

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

Key facts at a glance

LOINC
17232-0
Short code
Lysozyme Tear-cCnc
Synonyms
Lysozyme Tear-cCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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 order this test if you have symptoms or a family history suggestive of lysosomal storage disorders (e.g., mucopolysaccharidoses, Gaucher disease, or Niemann-Pick disease). It may also be used in research or specialized diagnostic evaluations.

What to Expect Before the Test

No special preparation is typically required, but you may be asked to fast for a few hours before the blood draw if instructed by your provider. Bring any medications or supplements you’re taking to discuss with your doctor.

How the Test Works

A small blood sample is drawn from a vein in your arm. The sample is tested for enzyme activity in a lab setting, often using a biochemical method like enzymatic assays to measure breakdown rates of specific substrates.

What the Results Mean

Results may show elevated or reduced enzyme activity compared to expected levels, which can help identify lysosomal disorders. Your doctor will interpret results in the context of your symptoms, medical history, and other tests.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Abnormal enzyme activity can signal lysosomal storage disorders, where waste materials accumulate inside cells due to missing or defective enzymes. Early diagnosis is crucial for managing symptoms and planning treatment options, such as enzyme replacement therapy.

Short name

Lysosomal Enzyme Activity

Frequently asked questions

What causes lysosomal enzyme activity to be tested?
Lysosomal enzyme activity testing is primarily ordered when a doctor suspects a lysosomal storage disorder based on symptoms like organ enlargement, developmental delays, or neurological issues, or when genetic testing confirms a suspected genetic mutation linked to lysosomal function.
What symptoms might lead to this test?
Symptoms that could prompt this test include progressive organ enlargement (e.g., liver, spleen), developmental delays, cognitive impairment, movement disorders, or respiratory problems in infants and children. Adults may experience joint stiffness, heart issues, or vision problems.
How long does it take to get results?
Results are typically available within 1 to 2 weeks, depending on lab processing times and whether additional confirmatory tests are needed. Your doctor will contact you once results are ready.
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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