T3 Uptake

Last Modified: 1/31/2022 1:39:49 PM


  Medicare Medical Necessity Restrictions May Apply
Medical Necessity Documentation:  
Client Notes:  
Patient Preparation:  
Specimen Requirements:

1.0 mL Serum from a Red Top Tube in a Plastic Vial
Collection Instructions:  
Minimum Volume: 0.2 mL
Transport & Storage: Temperature/Stability: 7 days Ambient (Transport)
10 days Refrigerated

48 hours on cells
Reference Range: 22-35%
Critical Ranges:  
Test Comments:  
Methodology: Immunoassay
Clinical Significance: Decreased: Pregnancy, estrogens, hyperproteinemia, acute intermittent porphyria.
Increased: Androgens, hyperproteinemia, stress, acute liver disease.
This assay is a measure of available thyroid hormone binding sites and should be interpreted with thyroxine levels.
Documentation:  
Custom Panel: No

PRODUCTION SCHEDULE

Turn Around Time: 1 to 2 days
Days Performed: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday
Sites Performed: Quest - Chantilly
PHL Test Code: T3UPC
EPIC Test Code: LAB135
Send Out Test Code: 861
Alternate Test Names: Resin Uptake
Included Tests:  
CPT Coding: 84479

Go back to the top of the page.