Cd91cellsnfrbld
Key facts at a glance
- LOINC
- 17207-2
- Short code
- CD91
- Synonyms
- CD91 Cells NFr Bld
- Category
- chemistry
- Sample
- whole-blood
- Container
- EDTA (lavender-top) or ACD (yellow-top) anticoagulant tube for flow cytometry; heparinized tubes may be acceptable per laboratory protocol.
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- Flow Cytometry
- CPT
- 88184
- SNOMED
- 399130001
- Specimen volume
- 3-5 mL whole blood for adults; minimum 1 mL for pediatric patients
- Stability
- Specimen must be processed within 24-48 hours of collection when stored at room temperature (18-25°C); viability may decline with prolonged storage.
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 24–72 hours
- Order
- routine
Reference range
Reference ranges vary by laboratory; results reported as percentage of positive cells and/or absolute count per microliter. Typically interpreted in context of clinical findings and concurrent immunophenotyping panels.N/A
No special preparation required. Samples should be processed promptly to maintain cell viability and accurate surface marker expression.
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.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy