Serum Lysozyme Mass Concentration
This test measures the amount of lysozyme, a protein that helps fight bacterial infections, in your blood serum. Lysozyme is produced by white blood cells and other tissues.
["Lysozyme helps defend your body against harmful bacteria and may be checked if you have symptoms of infection or certain inflammatory conditions."]
Key facts at a glance
- LOINC
- 10971-0
- Short code
- Lysozyme Ur-mCnc
- Synonyms
- Lysozyme Ur-mCnc
- Category
- chemistry
- Sample
- urine
- Container
- Sterile urine container
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Specimen volume
- 10 mL
- Stability
- Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 4–24 hours
- Order
- routine
Why This Test Might Be Ordered
Your healthcare provider may order this test to evaluate immune function, assess for infections (such as tuberculosis or certain bacterial infections), or investigate conditions like chronic inflammation or autoimmune disorders. It can also be part of monitoring for conditions like granulomatous diseases or certain cancers.
What to Expect Before the Test
No special preparation is typically needed. You may have a small needle inserted into a vein (usually in your arm) to draw blood. If you’re on blood thinners or have a history of bleeding issues, let your provider know. Avoid alcohol before testing if it could affect your bloodwork results.
What the Test Results Mean
Results are usually reported as a mass concentration (e.g., milligrams per deciliter). While reference ranges can vary by lab, elevated levels may suggest an active infection or immune response, while very low levels might indicate certain immune deficiencies or conditions. Your provider will interpret results in the context of your overall health and symptoms.
Common Conditions Monitored
This test is sometimes used to monitor conditions like tuberculosis (TB), certain bacterial infections, or inflammatory diseases. It may also be part of diagnostic workups for conditions affecting white blood cells or immune function, though it’s not a definitive test alone.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
Lysozyme Level
Frequently asked questions
How often will I need this test?
Can lysozyme levels change with diet or supplements?
Is this test painful or uncomfortable?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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