Lysozyme, Urine
0050368
Ordering Recommendation
 
Mnemonic
LYSOZ U
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
Random urine.  
Specimen Preparation
Transfer 3 mL aliquot from a well-mixed random urine collection to an ARUP Standard Transport Tube. (Min: 0.5 mL)  
Storage/Transport Temperature
Refrigerated. Also acceptable: Frozen.  
Unacceptable Conditions
  
Remarks
  
Stability
Ambient: Unacceptable; Refrigerated: 1 week; Frozen: 3 months  
Reference Interval
Less than 4 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
Elevated levels of urine lysozyme occur during severe renal insufficiency, renal transplant rejection, urinary tract infections, pyelonephritis, glomerulonephritis, and nephrosis. Urine lysozyme levels may also be elevated in acute myelomonocytic leukemia (FAB-M4), chronic myelomonocytic leukemia (CMML), and chronic myelocytic leukemia (CML).
CPT Code(s)
85549
Components
Component Test Code*Component Chart Name
0050368Urine Lysozyme
* 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 urine
  • Urine lysozyme