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Test Code LAB129 TSH (Thyroid Stimulating Hormone)

Performing Lab

Arnot Ogden Medical Center/ Ira Davenport Memorial Hospital

Ordering Recommendations

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 thyroid-stimulating hormone (TSH) suppression in thyroid cancer patients on thyroxine suppression therapy.

Prediction of thyrotropin-releasing hormone-stimulated TSH response.

Collect

Serum or Plasma

 

Collection Device

Green Lithium Heparin or Gold Top Tube, Red Top Tube

 

Specimen Handling

Samples without a gel barrier: Centrifuge and pour off to a storage tube within 2 hours of collection.

Stability (from collection to initiation)

Room Temp 18 Hours
Refrigerated 7 Days
Frozen 90 Days

 

Storage/Transport Temperature

Room Temp, Refrigerated

Specimen Volume

5 mL

Minimum Requirements

0.5 mL

Remarks

TURN AROUND TIME

STAT

1 Hour
Routine 8 Hours

Methodology

Immunoenzymatic

Start Date

9/13/2017

Last Review Date

7/3/25 AP