loader
Find a Test

Thyroxine, Thyroxine-binding Globulin and T4−TBG Index

Test Details
Test Details
Sample Requirements
Sample Requirements
Order Code
004457
CPT
84436, 84442
Test Details
Synonyms

TBG, Thyroxine (T4), and T4−TBG Index

TAT

7 days

Methodology

See individual test descriptions

Performing Location

Accredited Laboratory Partner

Testing Frequency

Contact Technical Support

Test Overview

Combined test to assess binding and free hormone index.

Specimen Type

Serum

Volume

2 mL

Specimen Container

Red-top tube or gel-barrier tube

Patient Preparation

No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.

Collection

This test does not require any special collection or pre-analytical handling. Follow routine specimen collection protocols.

Specimen Stability
Temperature Period
Room temperature 7 days
Refrigerated 14 days
Frozen 14 days
Order Code
004457
CPT
84436, 84442
Test Details
Synonyms

TBG, Thyroxine (T4), and T4−TBG Index

TAT

7 days

Methodology

See individual test descriptions

Performing Location

Accredited Laboratory Partner

Testing Frequency

Contact Technical Support

Test Overview

Combined test to assess binding and free hormone index.

Specimen Type

Serum

Volume

2 mL

Specimen Container

Red-top tube or gel-barrier tube

Patient Preparation

No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.

Collection

This test does not require any special collection or pre-analytical handling. Follow routine specimen collection protocols.

Specimen Stability
Temperature Period
Room temperature 7 days
Refrigerated 14 days
Frozen 14 days