Free Triiodothyronine (T3) by Mass Spectrometry/Equilibrium Dialysis

Synonyms

  • FREE T3 BY DIALYSIS
  • LAB11139
  • T3DIAL

Cerner Name

Free T3 by Dialysis

Clinical Info

T3 measurements are used to diagnose hyperthyroidism. This test can also be used to clarify thyroid status in the presence of possible protein-binding abnormalities

Specimen Sources

Blood, Arterial Blood, Capillary Blood, Central Line Blood, Venous

Specimen Types

Blood

Specimen Volume

1.0 mL serum ( 0.5 mL min)

Container

Gold Top Tube

Collection Instructions

Container/Tube: Gold Top tube(s)
Specimen: 1.0 mL serum ( 0.5 mL min)
Transport Temperature: Refrigerated

Transport Instructions

Refrigerated

Specimen Stability

Methodology

Equilibrium Dialysis by Radioimmunoassay (RIA) •  Immunochemiluminescence Assay (ICMA)  

Days Performed

Tuesday, Thursday Morning Report available: 3 - 4 Days  

Performing Laboratories

Quest Diagnostics' Nichols Institute, Inc. - Chantilly

CPT

84480
84481

PDM

5301427

Results
Component Name Base Name Common Name External Name
FREE T3 DIAL FREET3 FREE T3 DIAL Free T3 Dial
T3, TOTAL T3TOTAL T3, TOTAL T3, Total

Result Interpretation

Free T3
 1-9 Years 282-518 pg/dL 
 10-13 Years 286-556 pg/dL
 14-17 Years 252-501 pg/dL
 Adult 210-440 pg/dL
 Pregnancy (all trimesters) 200-380 pg/dL 
T3 Total
 
 
<4 Year Not established
4-9 Years 104-190 ng/dL
10-13 Years 94-213 ng/dL
14-17 Years 84-179 ng/dL
≥18 Years 76-181 ng/dL
 
 

Forms
Endocrine LAB11139 build edit