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Test Code TSH-Reflex Thyroid Stimulating Hormone (TSH) with Reflex

Specimen Type

Blood

Minimum Volume

2.0 mL

Container

Mint Green-Lithium Heparin
Plasma/Refrigerate

STAT Turnaround Time

60 Minutes

Routine Turnaround Time

4 Hours

Methodology

Chemiluminescent microparticle immunoassay (CMIA)

Reference Range

Hypothyroid      >7.1 mcIU/mL
Euthyroid             0.30-5.00 mcIU/mL
Hyperthyroid     <0.01 mcIU/mL

 

Borderline values outside the Euthyroid range should be further evaluated, as they may indicate borderline thyroid disease or severe nonthyroidal illness.

Note

Thyroid Function Algorithm will be followed.

 

Thyroid Function Algorithm

CPT Code

84443