Therapeutic drug management
Red serum vial/tube, 5 mL
Serum/plasma transfer vial/tube (MedTox)
Dk green heparin (Li or Na), no gel
Immediately following collection, mix by inverting 8 - 10 times to prevent clotting
Refrigerated (preferred)
Ambient - 3 days
Frozen (OK)
Spectrophotometry
Toxic: ≥10 mg/dL