Investigation of paracetamol overdose

In investigation of overdose, samples should be taken 4 hours post-ingestion and prior to treatment.

Please note: paracetamol results may be falsely low (up to 40 %) if samples are taken post N-acetylcysteine (Parvolex) treatment. Treatment will also significantly lower subsequent creatinine results.

All detectable results will be telephoned to the requesting ward.

Other Comments:

For more information, please see the following: Paracetamol - Lab Tests Online

Content approved in Clinical Biochemists meeting 05.09.18

About This Test

Department: Biochemistry


  • Gel/clotted (yellow/red top)

Add-on requests are accepted

Turnaround Time:

Within 24 hours