TSH

Test Code
LAB129


Alias/See Also
Thyroid Stimulating Hormone


CPT Codes
84443

Preferred Specimen
4.5 ml (1.5 ml minimum) lithium heparin (green); alternate-SST (gold) or Red (no additive)


Minimum Volume
1 ml (500 ul minimum) plasma; alternate-serum


Instructions
After centrifugation, if not in gel barrier tube, pour off serum into an aliquot tube


Transport Temperature
Room temp


Specimen Stability
Separated from cells: 8 hours room temp, 48 hours refrigerated


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Icteric: >10 mg/dL bilirubin, Hemolysis: >500 mg/dL hemoglobin, Lipemia: >1800 mg/dL triolein


Methodology
Immunoenzymatic

Setup Schedule
Mon- Sun


Reference Range
0.34–5.60 uIU/mL


Clinical Significance
The principal clinical use for hTSH measurement is for the assessment of thyroid status


Performing Laboratory
Piedmont Athens Regional



The CPT Codes provided in this document 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 payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.