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| 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 # |
CD4 & CD8 COUNT
MessageNote: CD8 is not orderable as a single-order test.
Test Code
CD4CD8 (OE), CD48C (LAB)
CPT Codes
86359, 86360
Includes
- Absolute Lmphocytes
- Percentage CD3
- Absolute CD3
- Percentage CD4
- Absolute CD4
- Percentage CD8
- Absolute CD8
- CD4/CD8 Ratio (calculated)
Preferred Specimen
Lavender tube (EDTA)
Patient Preparation
None
Minimum Volume
5 mL
Instructions
Deliver specimen to laboratory ASAP
Transport Container
Lavender tube
Transport Temperature
Room temperature
Specimen Stability
Room temperature up to 48 hours
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Specimen too old for analysis or improperly stored
Methodology
Flow cytometry
Setup Schedule
M, T, W, Th, F, Sa
Report Available
Report available within 24 hours of receipt (Monday - Saturday)
Report available within 48 hours of receipt (Sunday & holidays)
Report available within 48 hours of receipt (Sunday & holidays)
Reference Range
| CD3% | 58-84 |
| CD3 cells/uL | 856-2237 |
| CD4% | 34-65 |
| CD4 cells/uL | 518-1472 |
| CD8% | 13-38 |
| CD8 cells/uL | 205-924 |
| CD4/CD8 Ratio | 0.9-5.0 |
Clinical Significance
Serial monitoring of CD4 T-cell count in HIV-positive patients. Useful for follow-up and diagnostic evaluation of primary cellular immunodeficiencies including severe combined immunodeficiency.
