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Test Code T4T T4 (Thyroxine), Total, Serum

Important Note

This test does not include Free T4 (order separately)

Specimen Requirements

Specimen must arrive within 24 hours of collection.

 

Container/Tube: Gold-top serum gel tube.  

Microcontainer with serum gel separator is also acceptable.

Specimen Volume: 0.5 mL of serum
Transport Temperature: Refrigerate
Collection Instructions: Forward promptly.

Note: 1. Medicare diagnosis limitations exist for this test. Click on link for list of medically necessary diagnoses: http://www.munsonhealthcare.org/medical-necessity.  See Advance Beneficiary Notice of Noncoverage (ABN) form in Special Instructions.

Performing Laboratory

Munson Medical Center Laboratories

Methodology

Chemiluminescence Immunoassay

Reference Values

6.1 - 12.2 ug/dL

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

84436