What are the specimens collected for glucose tolerance testing (GTT)?

Updated: May 10, 2021
  • Author: Jiun-Lih Jerry Lin, MBBS, MS(Orth); Chief Editor: Eric B Staros, MD  more...
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Answer

Answer

Specifics for collection and panels are as follows:

  • Specimen type: Blood serum or plasma

  • Container: Vacutainer, red top (serum) gray top (plasma)

  • Collection method: Venipuncture

  • Specimen volume: 1 mL

Related tests include serum or plasma glucose, hemoglobin A1c, urinalysis, C-peptide, and insulin.


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