TRH/TRF
25 days
Direct radioimmunoassay
Accredited Laboratory Partner
Contact Technical Support
Stimulates TSH release. Rarely used dynamic thyroid test.
Plasma
5 mL
Contact Technical Support for the specimen container
Patient should not be on any thyroid medication if possible for at least 48 hours prior to collection of specimen
Plasma should be separated from cells within two hours of venipuncture. Send Plasma in a plastic transport tube.
| Temperature | Period |
|---|---|
| Frozen | Contact Technical Support |