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St. John Health System
Lab Catalog


Index:

B and T Lymphocyte Quant by Flow

Order Name B T Lymph Qnt
Test Number: 5582618
Revision Date 05/24/2023
Test Name Methodology LOINC Code
B and T Lymphocyte Quant by Flow
Flow cytometry  
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 5 mL each (3 mLeach) Whole Blood EDTA (Lavender) and ACD Sol A/B (Yellow Top) Room Temperature
Instructions Collect Whole blood in Both ACD Solution A or B (Yellow Top) and EDTA (Lavender Top).
Keep whole blood, do not centrifuge or refrigerate.
Deliver to the laboratory ASAP - Same Day as Collection!
Stability:
  Room Temperature,  Yellow-top (ACD-A) or (ACD-B) tube: 2 days Lavender-top (EDTA) tube: 1 day

Collect Monday through Wednesday only. Specimens must be received at Labcorp Oklahoma Inc. by Wednesday afternoon or collect on Monday.
GENERAL INFORMATION
Testing Schedule Testing schedule may vary. 
Expected TAT 3-5 days, 
Clinical Use This test is also known as: Lymphocyte Quant by Flow or Flow Abbreviated Immunophenotype Panel
This is a semi-quantitative assay that measures both the relative and absolute numbers of B cells and T cells in the peripheral blood, which may be useful in the initial evaluation of patients with suspected immunodeficiency. 
CPT Code(s) 86355; 86359; 86360
Internal Comments 9/27/17 hidden since there is a requested change, and per Brittany Vaughn this was not built as indended, there was some misscommunication.
5/22/19 changed cpt from 86355, 86356, 86360, 96361, 85025 to  86356, 86359, 86355, 85025, 86360 per heather mckay
8/3/2020 changed out components from Carol S TQM ticket - JK
8/3/20 cpt change
from
86356, 86359, 86355, 85025, 86360 (CD4/CD8 combined with ratio bill single 86360)
to
86359, 86355, 85048, 85004, 86360 (CD4/CD8 combined with ratio bill single 86360)
-JK
5/24/23
86359, 86355, 85048, 85004, 86360 (CD4/CD8 combined with ratio bill single 86360)
to
86355; 86359; 86360
09/16/2024 - added stability to instructions section per TQM LCA spreadsheet - bm
Service Provided By Labcorp Oklahoma, Inc.
Lab Section Reference Lab