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HelpTest Code TRF Transferrin
EHR Test Codes
| Test Code | Test Name | |
| Atlas | TRF | Transferrin |
| Cerner | Transferrin |
Specimen Requirements
Preparation of Patient:
Fasting specimen is preferred not required.
Container Type:
Green Top 5mL Lithium Heparin Separator Tube
Or
Gold Top 6mL SST Gel & Clot Activator Tube
Specimen Type:
Plasma or Serum
Specimen Volume:
2.5 mL Plasma or Serum minimum .5 mL
Specimen Handling/Transport:
Separate plasma or serum from cells within 2 hours of collection.
Transport ambient room temperature.
Specimen Stability/Storage:
3 days refrigerated 2-8°C
Performing Laboratory
Munson Healthcare Laboratories
Chemistry Department
Priority, Frequency, & Turnaround
Priority:
STAT, ASAP, Non-Emergent
Frequency:
24 hours 7 days a week
Turnaround:
0 - 1 days
STAT 45 minute from receipt in lab
Methodology
Immoniturbidimetric
Reporting
Reference Range:
203 - 362 mg/dL
Critical Decision:
None
Clinical Significance
Transferrin binds iron released from the catabolism of hemoglobin or that absorbed by the intestine. It then carries iron to storage sites or to sites that can use the iron. One transferrin molecule can bind two ferric ions. Transferrin is responsible for 50-70% of iron binding capacity. Since other proteins may bind iron transferrin concentration correlates but is not identical to TIBC.
Increased transferrin levels are seen in iron deficiency, pregnancy and estrogen administration. Decreased transferrin levels are seen in liver disease, inflammation, malignancy, and may be decreased or normal in iron overload.
CPT Code(s)
84466