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B2transferrinspecql

Published: August 9, 2026Updated: August 17, 2026
Medically reviewed by WellAlly Editorial TeamLast reviewed August 17, 2026Editorial policy

Key facts at a glance

LOINC
43858-0
Short code
B2TF
Synonyms
B2 Transferrin Spec Ql
Category
chemistry
Sample
serum
Container
Sterile leak-proof container
Units
N/A
Ref low
200
Ref high
350
Fasting
false
Population
adult
Sex
all
Age range
0–99 years
Method
Immunofixation Electrophoresis / Western Blot
CPT
86335
SNOMED
395143000
Specimen volume
0.5-1 mL of fluid (nasal or ear drainage); 1-2 mL serum
Stability
Refrigerated: 24 hours; Frozen (-20°C): up to 30 days; Avoid repeated freeze-thaw cycles
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
24–72 hours
Order
routine

Reference range

NCBI: Transferrin 200-350 mg/dLN/A

Specimen: serum

No special preparation required. Specimen is typically collected from nasal or ear drainage, not peripheral blood. Serum collection is used only when CSF contamination of blood is suspected.

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 17, 2026. · Read our editorial policy