Test Name: CD64

Methodology: Flow Cytometry

Test Description

Staining for CD64 detects subsets of normal mature granulocytes and monocytes at all stages of maturation. Increased expression of CD64 on neutrophils correlates with sepsis. CD64 expression is also present in most acute myeloid leukemias and some precursor B lymphoblastic leukemias.

Specimen Requirements

Testing for this antigen is typically performed as a part of acute myeloid leukemia add-on panel. For customized testing panels including this antigen, please contact the Medical Director of the Flow Cytometry laboratory.

Storage and Transport

Maintain specimen at room temperature. Do not refrigerate or freeze. Use cold pack for transport, making sure cold pack is not in direct contact with specimen.

Specimen Rejection Criteria

Click here to reference the specimen rejection criteria.

Turn Around Time (TAT): 24 hours

CPT Codes*: 88184, 88185, 88187, 88188, 88189

*The CPT codes provided with our Test Descriptions are based on AMA guidelines and are for informational purposes only. Correct CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed.