A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

T3 Uptake

Test Code
TUP


Preferred Specimen
1 mL serum


Minimum Volume
0.5 mL


Other Acceptable Specimens
Heparinized plasma


Transport Container
Serum separator tube (SST)


Transport Temperature
Refrigerated (cool packs)


Specimen Stability
 Refrigerated: 7 days


Methodology
Immunoassay (IA)

Setup Schedule
24/7


Report Available
Same day


Reference Range
0.800-1.300 TBI


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.




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.