Ambient - 3 days
MedTox Scientific (402); R-MX
Days Set Up:
Once a week
6-Mercaptopurine: <1000 ng/mL
Azathioprine is measured as the metabolite, 6-mercaptopurine. Therapeutic and toxic ranges have not been established. Usual therapeutic doses produce 6-mercaptopurine serum concentrations of less than 1000 ng/mL.
Collection/ Processing Details:
Trough levels are most reproducible.
High Performance Liquid Chromatography with Ultraviolet Detection (HPLC-UV)