T- AND B-LYMPHOCYTE/NAT KILLER

Test Code
505370


CPT Codes
86355; 86357; 86359; 86360

Includes
"Percentage CD3+; absolute CD3+; percentage CD3+CD4+; absolute CD3+CD4+; percentage CD3+CD8+; absolute CD3+CD8+; percentage CD3-CD56+ natural killer (NK) cells; absolute CD3-CD56+ natural killer (NK) cells; percentage CD19+; absolute CD19+; CD4:CD8 ratio;


Preferred Specimen
whole blood


Minimum Volume
"


Fill tube(s) to capacity
"


Instructions
"Invert tube 8 to 10 times immediately after collection. To preserve cellular viability, collect specimen so it will arrive in the laboratory within 48 hours of collection. Indicate date and time of venipuncture on the tube(s) and on the test request form.
"


Transport Container
"Lavender-top (EDTA) tube and yellow-top (ACD-A) or (ACD-B) tube
"


Transport Temperature
room temperature


Specimen Stability
2 days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
"Hemolysis; specimen refrigerated or frozen; clotted specimen; contaminated specimen
"


Methodology
"Flow cytometry "



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.