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Test Compendium


Test Code

  • 3095

Test Synonym

  • Nortriptyline

Minimum Volume

  • 0.3 mL

Specimen Requirements

  • Serum Or Plasma


  • Plain Red Top Tube, Lavender Top Tube, Green Top Tube, Transfer Tube- Plasma, Transfer Tube- Serum


  • Refrigerated

CPT Codes

  • 80182
    *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

  • 1 mL SERUM from a Red Top (do not use SST) or PLASMA (EDTA or Heparin)

Additional Information

  • Red-top tube, lavender-top (EDTA) tube, or green-top (heparin) tube. Do not use a gel-barrier tube (SST). Transfer separated serum or plasma to a plastic transport tube. For therapeutic monitoring, collect specimen immediately prior to next dose.

Specimen Stability

  • AMBIENT: 14 days REFRIGERATED: 14 days FROZEN: 14 days