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Laboratory Medicine

Test catalogue

Lysozyme, Serum (Muramidase)

Test Name

Lysozyme, Serum (Muramidase)

Gold Tube Specimen Type / Requirements

Container Type = 1 Gold Top (SST)

Minimum Volume = 1mL

Tube must fill to at least ½ or greater of its vacuum capacity

Specimen Handling

Collection Instructions: Collect sample in gold or red top with or without gel separator. Please provide age, gender and clinical history to facilitate interpretation of analytical findings and recommendation of further testing or consultation Write your initials, date and time of collection on the collection label.

Special Instructions Centrifuge serum specimens within 1 hour of collection. Transfer serum to sterile transport tube. Delayed separation of the serum can result in spuriously high levels of lysozyme, presumably because of the breakdown of leukocytes. Store and send frozen.

Rejection Criteria: Multiple freeze/thaw unacceptable, grossly hemolyzed, or lipemic, unlabeled or samples of non sufficient quantity.

Stability: Stable at room temperature for 24 hours, 15 days refrigerated and 18 days frozen.

Transportation: Send sample to core lab as soon as possible.

Required Documentation

Turnaround Time (TAT)

9 Days

Test Utilization

Reference Value

5.0-11.0 mcg/mL

Test Code




Testing Location

Referred Out – ON, Canada (ROICL02)

Other Information

Last Updated: October 21, 2019