THYROID-STIMULATING HORMONE-SENSITIVE (S-TSH) SERUM

General Information

HLAB/HOL Code: TSHS
UPHSM LIS Test #: 021944
Schedule:
Testing Time: 1-2 Days
Testing Lab: Mayo

Specimen Info
Only 1 specimen type required, unless otherwise specified

Volume: 0.6 mL
Temperature: Refrigerated
Tube Type: Serum
Collection Info:
Preferred: Serum gel
Acceptable: Red top
Collection Instructions:
1. Serum gel tubes should be centrifuged within 2 hours of collection.
2. Red-top tubes should be centrifuged and aliquoted within 2 hours of collection.

Specimen Acceptability

REJECT DUE TO:
Gross hemolysis: Reject
Gross lipemia: OK
Gross icterus: OK

Methods

Electrochemiluminescent Immunoassay

Clinical Utilities

Screening for thyroid dysfunction and detecting mild (subclinical), as well as overt, primary hypo- or hyperthyroidism in ambulatory patients
Monitoring patients on thyroid replacement therapy
Confirmation of thyrotropin (TSH, formerly thyroid-stimulating hormone) suppression in thyroid cancer patients on thyroxine suppression therapy
Prediction of thyrotropin-releasing hormone-stimulated TSH response

CPT Codes

84443

* The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding
is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.