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Serum Lysozyme Mass Concentration

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

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.

Quick summary

["Lysozyme helps defend your body against harmful bacteria and may be checked if you have symptoms of infection or certain inflammatory conditions."]

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

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?
The frequency depends on your health condition and treatment plan. If you’re being monitored for an infection or immune-related disorder, your provider may order this test periodically. For routine checks, it’s often not part of standard annual exams unless symptoms arise.
Can lysozyme levels change with diet or supplements?
Dietary factors or supplements typically don’t significantly affect lysozyme levels in blood. However, if you’re taking medications that influence immune function (e.g., steroids), discuss this with your provider before testing.
Is this test painful or uncomfortable?
The blood draw itself is usually quick and mild discomfort. Most people feel only a slight pinch or pressure. Rarely, there may be minor bruising or soreness at the site, but this resolves quickly. If you’re anxious about needles, let your provider know about options like numbing cream or distraction techniques.
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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