Transferrin, Serum
Also known as: TRNSF
Use
The Transferrin, Serum test aids in diagnosing iron deficiency anemia and iron overload by measuring the level of transferrin in the patient's bloodstream, which is a protein that binds iron for transport in the blood. Transferrin levels can indicate the total iron binding capacity of the blood and are typically elevated in iron deficiency anemia or decreased in iron overload conditions.
Special Instructions
A fasting specimen is preferred for this test to ensure accuracy. After collection, allow the specimen to clot completely at room temperature before separating serum or plasma from cells. Ensure that the specimen is collected in a serum separator tube or plasma separator tube, with green (lithium heparin) also being acceptable.
Limitations
This test requires proper handling to ensure stability. Specimens collected in EDTA are unacceptable, as are hemolyzed specimens, which can affect the accuracy of the test results. It is important that serum or plasma be separated from cells ASAP or within 2 hours of collection to maintain the integrity and reliability of the results.
New York Approved
Methodology
Immunoassay (Other)
Biomarkers
LOINC Codes
- 3034-6
Result Turnaround Time
1 day
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
0.5 mL
Minimum Volume
0.5 mL
Container
ARUP Standard Transport Tube
Collection Instructions
Collect in a serum separator tube or plasma separator tube, also acceptable: Green (lithium heparin). Allow specimen to clot completely at room temperature. Separate serum or plasma from cells ASAP or within 2 hours of collection.
Patient Preparation
Fasting specimen preferred.
Storage Instructions
Refrigerated
Causes for Rejection
Specimens collected in EDTA. Hemolyzed specimens.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 8 days |
| Refrigerated | 8 days |
| Frozen | 6 months |