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HelpTest Code ACD4B Absolute CD4 (T-Helper Cell) Count
Specimen Type
Blood
Preferred Collection Container
LAV
Collection Instructions
Routine venipuncture
Collection Volume
3 mL Lavender top tube
Minimum Collection Volume
Minimum pediatric volume of 1.2 mL in a Lavender top tube requires sample be tested within 24 hours
Rejection Criteria
Clotted specimen, diluted with IV fluid, tube that is not filled with minimum volume, improperly labelled.
Specimen Storage and Stability
DO NOT SPIN. Keep at room temperature, stable 48 hours
Day(s) and Time(s) Performed
Monday through Sunday, 24 hours
Alias
CD4; Absolute CD4; CD4 Count;
EPIC Code
LAB342
Acceptable Collection Container
LAV (EDTA)
Turn Around Time
<3 days
Lab Department
Flow Cytometry
CPT
86361
LOINC
24467-3