CD19+ B Cell Count

General Information

Lab Name

CD19+ B Cell Count

Lab Code

BCS19

Epic Name

CD19+ B Cell Count

Description

B cell subset for CD19 only.

All lymphocyte subset panels offered:
T cell subsets CD4/CD8 only, counts [TCS48] - CD4, CD8
T cell subsets CD3/CD4/CD8, counts [TCSA] - CD4, CD8, CD3
Lymphocyte subsets, T and B cell counts [TCSP] - CD4, CD8, CD3, CD19
Lymphocyte subsets, T, B, NK cell counts [TCSNK] - CD4, CD8, CD3, CD19, CD56
CD19+ B Cell Count [BCS19] - CD19 only

Components

Code Name
CD19P % CD19
CD19A Abs CD19 Lymphocyte Count
NFDA2 Test Comment

Interpretation

Method

Single Platform method via Flow Cytometry

Reference Range

See individual components

Ordering & Collection

Specimen Type

Blood

Collection

3 or 5 mL Lavender (EDTA) tube

Handling Instructions

Specimens must be tested within 24 hours of collection. For samples received >24 hours after collection, test will be cancelled and a re-draw requested. Specimens must be transported at room temperature. Refrigerated or frozen specimens will be canceled and a re-draw will be requested.

Processing

Stability: 24 hours @Room Temperature

SPS: Sample can be shared with CBC. Do not add on test if sample will be received in the Hematopathology lab outside the 24-hour stability limit.

Outside Laboratories: Specimens must be tested within 24 hours of collection. For samples received > 24 hours after collection, test will be canceled and a re-draw will be requested. Contact Lab Med Call Center 206-685-6066 to discuss transportation options.

Performance

LIS Dept Code

Hematopathology (HP)

Performing Location(s)

Other Hematopathology
206-606-7060

UW Hematopathology Laboratory, G7-800
Fred Hutchinson Cancer Center
825 Eastlake Avenue E.
Seattle, WA 98109

Hematopathology hours:
5:30 am - 6:30 pm Monday through Saturday
7:30 am - 4:00 pm Sunday, and with reduced staffing on major holidays

Frequency

Monday-Sunday. For same day testing, sample must arrive in Hematopathology lab by 5pm Monday - Saturday and 2:30pm on Sunday.

Available STAT?

No

Billing & Coding

CPT codes

86355

LOINC

731-0

Interfaced Order Code

UOW3935