Quetiapine (N-Desalkylquetiapine, O-Desalkylquetiapine and 7-Hydroxyquetiapine by LC-MS/MS)

Record sample date and time. State the date, time, and size of last dose.
Hospital or GP.
*If Urgent Colchester Request*: 3.4ml Red EDTA.
*If Urgent Colchester Request*: King's College, TAT: 1w.
Non-fasting. The ideal sampling time is immediately before the next dose.