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TRANSFERRIN
Number 562
CPT Code 84466
Alias SIDEROPHILIN
Specimen Container SST
Specimen Type Serum
Turn Around Time
Days Performed
Reference Range 200-370 mg/dL
Alternate Specimen Red Top
Volume 1 mL Serum
Stability Ambient 14 Days
Stability Refrigerated 14 Days
Stability Frozen 14 Days
Patient Preparation
Methodology
Immunologic
Limitations
Increased in patients on oral contraceptives and in late pregnancy. May not be elevated in iron-deficient states in which there is severe protein malnutrition (eg, kwashiorkor).
Rejection Criteria
Hemolysis
Additional Instructions
Performing Laboratory Reference Laboratory
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