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Test Code Tgb Ab Thyroglobulin Antibody

Patient Preparation

No special patient preparation required

Collection Method

Venous collection

Minimum Volume

  • Adults: 1 mL
  • Pediatric: 0.8 mL

Container

Gold Top / Serum Separator / Additive Free

Preferred Specimen

Gold Top SST

Acceptable Specimens

Serum:

  • Gold Top SST
  •  
  • Red Top


Plasma:

 

  • Purple or Pink Top (K2/K3 EDTA)

 

Reference or Target Ranges

<115

Reportable Units

IU/mL

Critical Value

Not defined for this assay

Reasons for Rejection

 


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Hemolysis Threshold 600 mg/dL
Icterus Threshold 66 mg/dL
Lipemia Threshold 2000 mg/dL
Other QNS, contaminated, improperly Labeled, improper specimen type

Specimen Stability

 


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Ambient 4 days
Refrigerated (4°C to 8°C) 4 days
Frozen(-40°C to 0°C) 2 months

Performance Information

 


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Days and Time Performed 24/7
Expected Turn Around Time Routine: 4 hours
Stat Availability No
Performing Bench UH Chemistry
Methodology/Method Description Roche Cobas – Two step competition assay

Additional Information/Important Notes

The measured anti-Tg of a patient’s sample can vary depending on the testing procedure used. The laboratory finding must therefore always contain a statement on the anti-Tg assay method used. Anti-Tg values determined on patient samples by different testing procedures cannot be directly compared with one another and could be the cause of erroneous medical interpretations. The University of Missouri hospital uses the Roche Cobas 801 on the 8000 line.

CPT Codes

86800