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Cellscd200cd19nfrspecfc

Published: August 9, 2026Updated: August 16, 2026
Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
106958-2
Short code
CD200CD19
Synonyms
Cells.CD200+CD19+ NFr Spec FC
Category
chemistry
Sample
serum
Container
EDTA (lavender-top) tube for peripheral blood; sterile anticoagulant-containing tube for bone marrow aspirate. Sodium heparin tubes may also be acceptable for flow cytometry analysis.
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
≥ 0 years
Method
flow-cytometry
CPT
88184
SNOMED
117617002
Specimen volume
Minimum 1-3 mL of peripheral blood in EDTA or 1-2 mL of bone marrow aspirate in anticoagulant medium. Pediatric volumes may vary by institution.
Stability
Specimens should be processed within 24-48 hours of collection at room temperature (18-25°C) for optimal viability. Prolonged storage may result in cell death and altered immunophenotypic results. Refrigeration is generally not recommended for flow cytometry specimens.
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
24–72 hours
Order
routine

Reference range

Reference ranges for CD200+CD19+ B-cell populations vary by laboratory and clinical context. Results should be interpreted in conjunction with clinical findings and other immunophenotypic markers. Consult the performing laboratory's reference interval for specific values.N/A

Specimen: serum

No special patient preparation is typically required. However, recent chemotherapy, immunotherapy, corticosteroid use, or bone marrow transplantation may significantly affect results and should be disclosed to the ordering physician.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

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