Test Code 62871453 Thyroid Profile
Panel includes:
FT4, TSH
Specimen Requirements
Submit only 1 of the following specimens:
Hospital Preferred Specimen Type: Plasma
Container/Tube: Lithium heparin gel
Outreach Preferred Specimen Type: Serum
Container/Tube: Serum gel
Spin Instructions:
Serum gel: Allow to sit for 30 minutes prior to spinning. Spin within 2 hours of collection.
Heparin plasma: Spin within 45 minutes of
collection.
Also acceptable: Red top tube
Specimen Transport Temperature
Ambient
Storage Temp Stability
Room Temperature: 24 hours
Refrigerated: 7 days
Methodology
LOCI—Luminescent Oxygen Channeling Immunoassay
Methodology change from the following on 11/17/15.
FT4: Competitive immunoassay using direct chemiluminescent technology
TSH: 3rd Generation assay using direct chemiluminescent technology
Reference Range
See individual tests
Day(s) Test Set Up/TAT
Performed:
Daily
Available STAT
STAT: < 1 hr
Routine: < 4 hrs
Aliases
TSH Thyroid, Thyroid Screen
CPT Code
84439 (FT4), 84443 (TSH)