LYMPHOCYTE ABSOLUTE CD4 COUNT

Index:

Order Name T Helper
Test Number: 3654600
Revision Date 05/24/2023

Test Name	Methodology	LOINC Code
Lymphocyte Absolute CD4 Count	Flow cytometry

SPECIMEN REQUIREMENTS
Specimen	Specimen Volume (min)	Specimen Type	Specimen Container	Transport Environment
Preferred	5 mL each (3 mL each)	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! Collect Monday through Wednesday only. Specimens must be received at Labcorp Oklahoma Inc. by Wednesday afternoon or collect on Monday. Stability: Room Temperature: Yellow-top (ACD-A) or (ACD-B) tube: Lavender-top (EDTA) tube: 1 day

GENERAL INFORMATION

Testing Schedule

Testing schedule may vary.

Expected TAT

3-5 days

Clinical Use

Marker for level of immunocompetence. The T4 Lymphocytes reports out values for Lymphocyte Percent CD4 and Lymphocyte Absolute CD4

CPT Code(s)

86361

Internal Comments

9/25/18 reworded the notes section
02/04/19: Added interpretative data link to notes
5/31/23 removed notes
09/17/2024 added stabilty instructions per TQM spreadsheet - bm
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The "T Helper" 3654600 is a careset that Reports the following results under these two test components:

Component Order Code	Component Long Test Name	LOINC	Result Code	Mnemonic	Result Test Name
3304098	.Lymphocyte Absolute CD4 Count			.Lymph CD4
		8123-2	3654625	Lymph Abs CD4	Lymphocyte Absolute CD4 Count
		24467-3	3654615	Lymph Pct CD4	Lymphocyte Percent CD4
3491793	.Lymphocyte Percent for Flow Cytometry				.Lymph Pct Flow
			0105400	WBC for Flow	WBC for Flow Cytometry
			0105450	Lymph Pct Flow	Lymph Percent for Flow Cytometry

Click here for additional interpretative information

Lab Section

Reference Lab