Centralized Core Laboratory:Chemistry
Green top (lithium heparin) tube
Cause for rejection:
Daily, 24 hours; STAT
Turbidimetric Inihibition Immunoassay
To determine toxicity, draw levels 4 hours post-ingestion and 3-4 hours later. This half-life indicates a likelihood of liver injury if more than 4 hours. For therapeutic monitoring, draw peak levels 1 hour post oral dose and trough levels immediately prior to next dose. Please indicate whether the specimen is a peak, trough, or random level.
Therapeutic range: 10-25 ug/mL
Tylenol; Paracetamol; Datril