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Test Name:T3, Reverse
Test Number:LAB123
Collect:1.0 ml Serum - Plain Red
Peds Collect:0.5 ml Serum - Plain Red
Alternate Collect:1.0 ml Serum - SST
Container:MAYO - Screw Cap Transfer Vial
Processing:Spin and separate
Transport/Stability:Frozen (preferred) - 28 days
Refrigerated - 7 days
Ambient - 7 days
Alternate Names:Triiodothyronine, Reverse, T3R, 84482.0
Performing Lab:Mayo Medical Labs (RT3); R-MM
Days Set Up:Mo, We, Fr; 8:30am
Expected TAT:3 - 4 days
Ref. Ranges:10 - 24 ng/dL
Collection/
Processing Details:
Blood should be allowed to clot for 30 minutes prior to centrifugation and separation.
Rejection Criteria:
Serum unseparated from clot - plain red (>48 hours on clot)
Serum in SST not separated from gel within 24 hours
SST MUST be transfered to screw cap vial before transport.
Method:Liquid Chromatography -Tandem Mass Spectrometry (LC-MS/MS)
CPT Codes:84482
Date Created:09/04/2007
Revised Date:08/08/2014