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Test ID: T3    
T3 (Triiodothyronine), Total, Serum

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Secondary ID A test code used for billing and in test definitions created prior to November 2011

8613

NY State Approved Indicates the status of NY State approval and if the test is orderable for NY State clients.

Yes

Useful For Suggests clinical disorders or settings where the test may be helpful

Second-order testing for hyperthyroidism in patients with low thyroid-stimulating hormone values and normal thyroxine (T4) levels

 

Diagnosis of triiodothyronine (T3) toxicosis

Testing Algorithm Delineates situation(s) when tests are added to the initial order. This includes reflex and additional tests.

See Thyroid Function Ordering Algorithm in Special Instructions.

Special Instructions and Forms Describes specimen collection and preparation information, test algorithms, and other information pertinent to test. Also includes pertinent information and consent forms to be used when requesting a particular test

Method Name A short description of the method used to perform the test

Immunoenzymatic Assay

Reporting Name A shorter/abbreviated version of the Published Name for a test; an abbreviated test name

T3 (Triiodothyronine), Total, S

Aliases Lists additional common names for a test, as an aid in searching

T3 Suppression
T3 Total, Serum
Total T3, Serum
Triiodothyronine (T3)
Triiodothyronine, Total T3
T3 (Triiodothyronine), Total Only, Serum (Order T3 unless specified)
Thyroid Function Cascade
Triiodothyronine (Order T3 if not specified)