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
Tube
01 (SE) – Serum Gel
ID
Tests&Tubes0090
Additional information
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.
Turn around
A&E: N/A
Day Case: 24 Hours
In-Patient: 24 Hours
Out-Patient: N/A
GP: N/A
Send to
Blood Sciences LGI
Contact
For further details please contact Leeds Pathology customer services: [email protected].
Collection Con
Intensive care units, renal unit, transplant unit, patients on IV heparin use lithium-heparin (Green with Yellow ring) tube. Minimum volume: 500µl serum / plasma
Instructions for Lab Staff: Standard lab processing- No special requirements
Sample REQ
Blood
Ref. Range Notes
Units
mg/L