Specimen should be centrifuged prior to transport. Ensure that complete clot formation in serum specimens has taken place prior to centrifugation. If specimen is centrifuged before a complete clot forms, the presence of fibrin may cause erroneous results.
Minimum Volume
0.5 mL whole blood
Unacceptable Conditions
Grossly hemolyzed specimens.
Stability (from collection to initiation)
Ambient: 8 days
Refrigerated: 14 days
Frozen: 24 months at -20°C (Serum/plasma must be removed from cells or separator gel before freezing.)
Ordering Recommendations
Preferred test for screening and monitoring of thyroid function.
Add-On Information
This test may be added to an existing specimen for up to 6 days following collection.
Reference Interval
0.27 - 4.2 mIU/L
Interpretive Data
Results are susceptible to Biotin interference.
Reported
Within 24 Hours: 1 - 2 Hours once received by HCMC Clinical Laboratory
Specimen should be centrifuged prior to transport. Ensure that complete clot formation in serum specimens has taken place prior to centrifugation. If specimen is centrifuged before a complete clot forms, the presence of fibrin may cause erroneous results.
Minimum Volume
0.5 mL whole blood
Unacceptable Conditions
Grossly hemolyzed specimens.
Stability (from collection to initiation)
Ambient: 8 days
Refrigerated: 14 days
Frozen: 24 months at -20°C (Serum/plasma must be removed from cells or separator gel before freezing.)
Ordering
Ordering Recommendations
Preferred test for screening and monitoring of thyroid function.
Add-On Information
This test may be added to an existing specimen for up to 6 days following collection.
Result Interpretation
Reference Interval
0.27 - 4.2 mIU/L
Interpretive Data
Results are susceptible to Biotin interference.
Reported
Within 24 Hours: 1 - 2 Hours once received by HCMC Clinical Laboratory
