Muramidase
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Lysozyme, Serum
Test ID: LYSO
Test
Aliases/Synonyms
Method
Enzymatic
Report Includes
Lysozyme (Muramidase)
Specimens
Serum
Clinical Utility
Lysozyme in the serum is primarily due to the degradation of granulocytes and monocytes and its concentration reflects the turnover of these cells. Increases are seen in benign and malignant processes. Serum lysozyme is elevated in patients with acute or chronic granulocytic or monocytic leukemias and levels decrease with successful treatment. Conversely, patients with lymphocytic leukemia may have depressed plasma lysozyme levels.
Test Version
19-Nov-2025
Specimen
Specimens
Serum
Collection Containers
Gold top (clot activator & gel)
Sample Volume
1.0 mL
Minimum Volume
0.5 mL
Collection & Handling
Handling Information
Centrifuge serum specimens within 1 hour of collection. Delayed separation of the serum can result in spuriously high levels of lysozyme.
Stability
| Ambient | 24 hours |
|---|---|
| Refrigerated | 15 days |
| Frozen | 18 days |
Rejection Criteria
| Hemolysis | Moderate to Gross |
|---|---|
| Lipemic | Gross |
Test Version
19-Nov-2025
Performance / Interpretation
Method
Enzymatic
Turnaround Time
10 days
Results
| Name | Units | Reference Range | Conversion Factor | |
|---|---|---|---|---|
| Lysozyme | mcg/mL |
|
||
Test Version
19-Nov-2025
Interface / Setup
HL7 Interface Codes
| Order Code | Result Codes | Units |
|---|---|---|
| LYSO | 62651LYSOZYME (MURAMIDASE) | mcg/mL |
Test Version
19-Nov-2025