Cd33cd44cellsnfrbld
Key facts at a glance
- LOINC
- 20477-6
- Short code
- CD33CD44
- Synonyms
- CD33+CD44+ Cells NFr Bld
- Category
- chemistry
- Sample
- whole-blood
- Container
- EDTA (lavender/purple-top) anticoagulant tube for whole blood flow cytometry
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- Flow cytometry using fluorescently labeled monoclonal antibodies (CD33 and CD44) with whole blood staining and multi-parameter analysis on a flow cytometer
- CPT
- 86356 (each marker) or 88184/88185 as part of flow cytometry panel
- Specimen volume
- 3-5 mL of whole blood (minimum 1 mL for pediatric samples)
- Stability
- Specimen should be processed within 24-48 hours of collection when stored at room temperature (18-25°C). Do not refrigerate. Prolonged storage may affect antigen expression and cell viability.
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 4–48 hours
- Order
- routine
Reference range
Reference ranges for CD33+CD44+ cells vary by laboratory and should be interpreted using institution-specific reference intervals. Generally reported as percentage of total leukocytes or absolute count per microliter. Consult laboratory reference values for specific reference ranges.N/A
No special patient preparation required. Fasting is not necessary.
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 16, 2026. · Read our editorial policy