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CD4/CD8 *

SIM

21062 

CPT

86360 

Synonyms

CD4/CD8 ratio 

Specimen Type

Whole blood 

Container

1 - lavender (EDTA) tube and 1 - yellow top (ACD-A) tube

Collection Instructions

Must have both tubes, collect Mon. - Friday only After collection, invert 8-10 times.

Volume

Volume: 7 ml. whole blood for each tube
Min. volume: 5 ml. whole blood for each tube

Additional Information

HIV-1 infection results in decrease of CD4 t cells and increase CD8 T cells, a decrease in the CD4/CD8 ratio and progressive destruction of immune function.  In HIV1 seropositive  pts, CD4 T cells may be used to monitor disease.

Patient Preparation

None

 Specimen Processing Instructions

Whole blood, do not centrifuge

Transport Requirements

Room temperature;  Do not freeze or refrigerate

Specimen Stability

24 hours 

Rejection Criteria

Contaminated specimen; refrigerated or frozen specimen, clotted specimen; both tubes not received.Hemolysis

Reference Range

Reference range accompanies report .

CriticalValue

 

Test Includes

CD4 percentage, absolute, CD4,  CD8 percentage, absolute CD8, CD4/CD8 ratio, CBC with diff. 

Methodology

Flow Cytometry 

TestingFrequency

 

LCA

505271 

Reviewed By

Lisa McBride 

Reviewed Date

2/9/2018 

Supplemental

* Denotes Reference Lab test  

Reviewed by Lisa McBride on February 09, 2018

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