Free T4 (Thyroxine) by Equilibrium Dialysis
This test is subject to pathology approval prior to sending to the reference laboratory for testing. , ARUP #93244, Order as a Miscellaneous Sendout.
This test is only available to Endocrinologists and Nuclear Medicine Physicians.
Specimen Collection Criteria
Collect (preferred specimen): One Gold-top SST tube.
Also acceptable: one Red top tube.
Physician Office/Drawsite Specimen Preparation
Centrifuge to separate serum from cells. Transfer serum to a plastic transport tube and refrigerate (2-8°C or 36-46°F).
Preparation for Courier Transport
Transport: 2.0 mL serum, refrigerated (2-8°C or 36-46°F). (Min: 0.3 mL)
- Specimens not collected and processed as indicated.
Sunday, Tuesday, Thursday.
Results available in 2-7 days.
High Performance Liquid Chromatography-Tandem Mass Spectrometry.
ARUP #93244, Order as a Miscellaneous Sendout.
Microtainer® and Vacutainer® are registered trademarks of Becton, Dickinson and Company.
UroVysion® is a registered trademark of Abbott Laboratories. ThinPrep® is a registered trademark of Hologic, Incorporated.
This directory currently reflects information only for specimens collected and/or processed at the
Farmington Hills, Grosse Pointe, Royal Oak, and Troy campuses.