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Unit Code 8613:
T3 (Triiodothyronine), Total, Serum

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Useful For

Second-order testing for hyperthyroidism in patients with low thyroid

stimulating hormone (TSH) values and normal T4 levels

 

Diagnosis of T3 toxicosis

Special Instructions and Forms

• Thyroid Function Algorithm 

Method Name

Immunoenzymatic Assay
See "Thyroid Function Algorithm" in Special Instructions.

Reporting Name

T3 (Triiodothyronine), Total, S

Ordering Mnemonic

T3

Aliases

T3 (Triiodothyronine), Total Only, Serum (Order 8613 unless specified)

Thyroid Function Cascade  ORDER 80683

Triiodothyronine (ORDER 8613 if not specified)

Triiodothyronine (T3)

Triiodothyronine, Total T3

Key