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Test Code 6900 NASD Chloracetate Esterase

Specimen Containers and Fixatives

Lavender Top Tube (EDTA) or Green Top Tube (heparin) or bone marrow smears or tissue preps for slides

Specimen Required

NorthShore Lab Services: submit 3.0 mL (1.0 min) refrigerated blood.

Hospital setting: submit 3.0 mL (1.0 min) blood.

The test can also be performed on unfixed smears which should be kept at room temperature.

Day(s) and Time(s) Performed


Monday – Friday, 24 hours

Reference Values

See written Pathology report.

Method Name

Chloracetate Esterase Staining

CPT Code Information