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Test Compendium

1194: THIOPURINE METHYLTRANSFERASE (TPMT)

Test Code

  • 1194

Test Synonym

  • TPMT Activity

Minimum Volume

  • 5 mL

Specimen Requirements

  • Whole Blood

Container

  • Green Top Tube, Lavender Top Tube

Storage

  • Refrigerated

Turn Around Time

  • 5 days

CPT Codes

  • 82542
    *The CPT codes provided are based on AMA guidelines and are provided for informational purposes only. CPT coding is the responsibility of the billing entity. Please direct any questions regarding the CPT coding to the payer being billed.

Special Instructions

  • Green-top (sodium heparin) tube or lavender-top (EDTA) tube. Stable 2 days Room Temp

Specimen Stability

  • AMBIENT: 2 days REFRIGERATED: 7 days FROZEN: Unstable