Flow Cytometry, CD19 and CD20 Quantitation
GENERAL INFORMATION
Test Name:
Flow Cytometry, CD19 and CD20 Quantitation
PC/NPS Test Code:
FLOW CD1920
CPT Code(s):
88184 + (88185 X 7) + 88187
Methodology:
Flow Cytometry
Days of Week Performed:
M, Tu, W, Th, F
Routine TAT:
24-48 hours (excluding weekends and holidays)
Clinical Utility:
CD20 quantitation is useful to monitor patient response to therapeutic anti-CD20 antibody (eg, Rituxan) use.
COLLECTION AND HANDLING:
Collection Instructions:
One lavender (EDTA) blood tube. Refrigerate if testing will not be performed within 1-2 hours. If testing will not be performed within 24 hours, submit CBC results if available.
Collection Containers:
N/A
Specimen Transport Requirements:
Deliver to the lab ASAP. Refrigerate until tested. Testing must be performed within 48 hours of collection.
Specimen Labeling:
Label tube with two patient specific identifiers.
Rejection Criteria:
Clotted samples, samples >48 hours old, frozen specimens.
