| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
T-cell Ratio
MessagePerforming Lab: Regions
Test Code
3508
Alias/See Also
Sunquest: TCRR; CD3/CD4/CD8 Ratio
CPT Codes
86359; 86360
Includes
CD3; CD4; CD8 percent and absolute count; CD4/8 Ratio
Preferred Specimen
2.0 mL EDTA Whole Blood (lavender-top) tube
Minimum Volume
1.0 mL
Instructions
Processing;
Regions must receive sample within 30 hours of collection.
***Preferred to receive sample within 24 hours of collection.***
Regions must receive sample within 30 hours of collection.
***Preferred to receive sample within 24 hours of collection.***
Transport Temperature
Room temperature
Specimen Stability
Room Temperature: 30 hours
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Refrigerated; Frozen
Methodology
Multi-Color flow cytometry
Setup Schedule
Monday - Saturday
Report Available
2 business days
Reference Range
| CD Markers | Percent | Absolute Count |
|---|---|---|
| CD3 | 62.1 - 85.0% | 500 - 2,544 cells/uL |
| CD4 | 31.6 - 65.7% | 337 - 1,687 cells/uL |
| CD8 | 10.0 - 40.0% | 140 - 907 cells/uL |
| CD4:CD8 Rato | 0.8 - 3.7% | n/a |
Clinical Significance
Diagnosis and monitoring of acquired immunodeficiency syndrome (HIV infection).
