Test ID: Z1156
CPT code: 80335
Specimen Type: Red non gel
Frequency: Setup: Mon-Fri; analytic time 2 days
Instructions: 1mL serum from red (non gel) tube. Refrigerate. Draw 12hrs after
dose (TROUGH). Min 0.25mL.
Text: Nortriptyline is a tricyclic antidepressant (TCA) used for treatment of endogenous depression. It also is a metabolite of the antidepressant amitriptyline.
Methodology: Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)