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TRANSFERRIN

Mnemonic

TRF

Specimen Collection Requirements

Collect

Serum, one 5.0 mL gold (SST) or 7.0 mL red top tube

Handling

Allow serum to clot completely at room temperature (minimum: SST - 30 minutes and red top tubes - 60 minutes). Centrifuge and separate serum from cells within 1 hour of collection.

Preferred Volume

1.0 mL Serum

Minimum Volume

0.5 mL Serum (1.2 mL minimum whole blood draw)

Transport

Refrigerated (2-8°C)

Rejection Criteria

Grossly hemolyzed or grossly lipemic specimens

Stability

AFTER SEPARATION FROM CELLS: Room Temperature (18-26°C): 30 minutes; Refrigerated (2-8°C): 7 days; Frozen (≤ -20°C): 3 months if frozen within 24 hours of collection, avoid repeated freeze/thaw cycles

Testing Information

Performed

Mon - Fri

Reported

24-72 hours

Method

Nephelometry

Reference Values

Reference Values

192-343 mg/dL
Age adjusted ranges.

CPT Codes

84466

Last Updated: Tuesday, January 24, 2017 01:35:06 PM


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