Lysozyme, Serum

Test ID: 

703036

CPT code:

85549

Synonyms:

Muramidase, Serum

Clinical Use:

Differential diagnosis of leukemia. Present in association with some cases of myelogenous leukemia and in most cases of monocytic leukemia.

Test Information:

Serum lysozyme has been proposed as a parameter for monitoring disease progression/regression in cases of proven sarcoidosis.2 Revised FAB (French, American, British) criteria indicate that serum or urine lysozyme levels 3x normal fulfill one of three criteria for the presence of M4/M5 (acute myeloid leukemia with monocytic differentiation) vs M2 (acute myeloblastic leukemia with maturation).

Specimen Type:

Serum

Requested Volume: 

1 mL

Minimum Volume: 

0.2 mL

Container Type: 

Red-top tube or gel-barrier tube

Collection:

Transfer specimen to a plastic transport tube before shipment.

Storage Instructions:

Room temperature.

Stability Requirements:

Temperature

Period

Room temperature

4 days

Refrigerated

4 days

Frozen

14 days

Freeze/thaw cycles

Stable x2

 

 

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