Thyroid Stimulating Immunoglobulin

Specimen:

Collect

  • One SST

Also Acceptable:
  • One Green Top (Li Heparin)
  • One Lavender (EDTA)
  • One Red Top

Submit

  • 1 mL (Min:0.5 mL) Serum . Submit Frozen. Submit in a Standard Transport Tube.

Also Acceptable:
  • 1 mL (Min:0.5 mL) Plasma . Submit Frozen. Submit in a Standard Transport Tube.

Special Handling

  • Allow specimen to clot completely at room temperature
  • Separate serum from cells ASAP or within 2 hours of collection

Stability

Ambient: 1 Day(s); Refrigerated: 1 Week(s); Frozen: 12 Month(s); Incubated: Unacceptable

Methodology

  • Semi-Quantitative Chemiluminescent Immunoassay

Performed

Sun-Sat

Reported

2-4 Day(s)

CPT Codes

  • 84445

Components

  • 91340 - TSI
Last Updated: February 7, 2025 @ 10:13 am

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Common Lab Definitions

  • Serum 
  • Plasma 
  • STT