|Description||Phenobarbitone is a metabolite of Primidone, use this test to monitor patients on primidone.
NOTE: Reporting units changed from mmol/L to mg/L May 1, 2007|
|Indication||Therapeutic Drug Monitoring.
|Additional Info||For monitoring purposes, blood should not be drawn until a steady state has been attained. This will not be achieved until 2-4 weeks after starting therapy or changing dose. In children the period may be slightly shorter at 1-2 weeks. Renal or hepatic disease may result in increased phenobarbitone concentration. PLEASE NOTE: TEST CAN ONLY BE ADDED TO A SAMPLE WITHIN 8 HOURS OF COLLECTION|
|Interpretation||View results in light of patients clinical status.
|Tube||Serum or Heparin|
|Collection Conditions|| Use Gold top (serum gel) tube except for Intensive care units, renal unit, transplant unit, patients on IV heparin (use Green/Yellow top tube for these patients).|
|Min. Vol||1 mL|
|Ref. Range (Male)||10 - 40 mg/L|
|Ref. Range (Female)||10 - 40 mg/L|
|Ref. Range (Paed)|| |
|Ref. Range Notes||NOTE: Reporting units changed from mmol/L to mg/L May 1, 2007
|IP Acute TAT||- Contact Laboratory|
|IP Routine TAT||12 hours|
|GP Acute TAT||- Contact Laboratory|
|GP Routine TAT||24 hours|
Originally edited by : MC. Review due on 24/05/2017 08:00:58. Published By Sylvia McLellan on 24/05/2016 08:00:58.