Lysozyme, Serum or Body Fluid
0050367
Ordering Recommendation
 
Mnemonic
LYSO
Methodology
Quantitative Radial Immunodiffusion
Performed
Mon-Fri
Reported
1-5 days  
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
Patient Preparation
  
Collect
Serum separator tube, CSF, tears, or other body fluid. (Urine not accepted.)  
Specimen Preparation
Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum OR 0.5 mL CSF, tears OR other body fluid to an ARUP Standard Transport Tube. (Min: 0.4 mL)  
Storage/Transport Temperature
Refrigerated.  
Unacceptable Conditions
Urine.  
Remarks
Indicate source on the test request form.  
Stability
After separation from cells: Ambient: 8 hours; Refrigerated: 1 week; Frozen: 3 months  
Reference Interval
9-17 µg/mL  
Interpretive Data


See Compliance Statement D: www.aruplab.com/CS
Statement D: This test was developed and its performance characteristics determined by ARUP Laboratories. The U.S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.
 
Note
Serum and urine lysozyme levels may be elevated in acute myelomonocytic leukemia (FAB-M4), chronic myelomonocytic leukemia (CMML), and chronic myelocytic leukemia (CML). Increased serum lysozyme activity is present in tuberculosis, sarcoidosis, megaloblastic anemias, acute bacterial infections, ulcerative colitis, regional enteritis, and Crohn disease. Elevated levels of urine and serum lysozyme occur during severe renal insufficiency, renal transplant rejection, urinary tract infections, pyelonephritis, glomerulonephritis, and nephrosis.
CPT Code(s)
85549
Components
Component Test Code*Component Chart NameLOINC
0050367Lysozyme, Serum Or Body Fluid29956-0
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Muramidase
  • Muramidase serum
  • Serum lysozyme, Body fluid lysozyme