Test ID: Z4480
CPT code: 80285
Specimen Type: SERUM
Frequency: Setup: Mon-Fri; analytic time 2 days
Instructions: 2.0 mL serum from red nongel tube, frozen. Min 0.6 mL. Spin down within 2 hours of draw.
Text: Trough level (immediately before next dose) is recommended. Voriconazole is an antifungal agent. Monitoring trough levels of is suggested with reduced liver function, with CYP2C19 polymorphisms associated with poor metabolic function, patients taking other meds that affect CYP2C19 activity, and in patients experiencing potential toxicity.
Methodology: Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)