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HelpTest Code C4C8R CD4 CD8 RATIO
Clinical Indications
N/A
Additional Test Codes
Epic order name: CD4:CD8 RATIO (aka C4C8R)
Sunquest Order Code: C4C8R
Epic Px Code: LAB2902
Specimen Collection Type
Preferred: Dark green (heparin) Acceptable: EDTA
Minimum Collection Volume
1 ml
Reference Range
CD4 – 31.5-62.4% (491-7134 cells/uL)
CD8 – 9.6-38.3% (162-1074 cells/uL)
CD4/CD8 Ratio: 0.8-4.5
Critical Value
N/A
Interpretation
N/A
Rejection Criteria
Clotted or Refrigerated, >72hrs old, EDTA >24hrs old
Specimen Availability for Add-on Testing
ACD or Heparin <72hrs, EDTA <24hrs
Specimen Stability
Dark green (heparin)72 hrs Room Temp, EDTA 24 hrs Room Temp
Day(s) Performed
Monday through Saturday
Performing Lab- Department
TUKHS-BH-Flow Cytometry
CPT Code
86360
LOINC Code
54218-3
Test Alias
N/A
Additional Information / Notes
N/A