T4 FREE DIAL
T4 Free By Dialysis/Mass Spec
EPIC Test Procedure Code: LAB3606
Performing Lab:
Referral Laboratory
Container Type:
Red top tube, gel-barrier tube, or lavender top (EDTA) tube
Specimen Type:
Serum or plasma
Preferred Volume:
1 mL
Minimum Volume:
0.5 mL
Specimen Processing:
1. The serum or plasma must be separated from the cells within 45 minutes of collection.
2. Transfer the serum or plasma to a plastic transport tube.
3. To avoid delays in turn around time when requesting multiple test on frozen samples, submit separate frozen specimens for each test requested.
Store and Transport:
Frozen
Stability:
Frozen - 453 days
Refrigerated - 5 days
Room temperature - 2 days
CPT Codes:
84439 - T4 Free by Dialysis/Mass Spec (EAP 30021368)
Method:
Direct dialysis mass spectrometry; high pressure liquid chromatography/mass spectrometry (HPLC/MS)