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Therapeutic drug management
Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
Expected plasma concentrations in patients taking recommended daily dosages: up to 220 ng/mL.
Serum or heparinized plasma
Serum or plasma should be separated from cells within two hours of venipuncture. Submit serum or plasma in a plastic transport tube.
Maintain specimen at room temperature; stable for three days. Stable refrigerated for 14 days
Causes for Rejection