Cd5cd2cellsnfrbld
Key facts at a glance
- LOINC
- 17169-4
- Short code
- CD5CD2
- Synonyms
- CD5+CD2- Cells NFr Bld
- Category
- chemistry
- Sample
- whole-blood
- Container
- EDTA (lavender-top) or ACD (yellow-top) anticoagulated vacuum blood collection tube for flow cytometry analysis
- Units
- N/A
- Ref low
- 0
- Ref high
- 1
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- Flow cytometry using fluorescently labeled monoclonal antibodies (CD5 FITC, CD2 PE) with whole blood lysis and multi-color immunophenotyping
- CPT
- 86356
- SNOMED
- 122561008
- Specimen volume
- 3-5 mL whole blood; minimum 1 mL for pediatric samples
- Stability
- Ambient temperature: 24-48 hours; Refrigerated (2-8°C): up to 48 hours. Specimens should be processed within 24 hours of collection for optimal viability.
- Hemolysis max
- 100
- Lipemia max
- 100
- Icterus max
- 50
- TAT
- 24–72 hours
- Order
- routine
Reference range
CD5+CD2- cells are a rare subset normally absent or present in very low numbers (<1% of lymphocytes) in peripheral blood. Increased populations are clinically significant and may indicate specific lymphoid disorders such as chronic lymphocytic leukemia (CLL) or other B-cell lymphoproliferative disorders. Reference values should be interpreted in conjunction with the complete immunophenotyping panel.N/A
No special patient preparation required. Recent corticosteroid or immunosuppressive therapy may affect lymphocyte subset distribution and should be noted on the requisition.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 15, 2026. · Read our editorial policy