The Leeds Teaching Hospitals NHS Trust

Carbamazepine

Carbamazepine

For drug 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. Following the establishment of a steady state, further samples casn be taken after 3-4 days.

Tube 01 (SE) - Serum Gel
ID Tests&Tubes0030
Additional Information The concentration of carbamazepine may be increased in liver disease as it is completely metabolised by the liver. Carbamazepine may also induce the hepatic metabolism of other drugs by enzyme induction. PLEASE NOTE: TEST CAN ONLY BE ADDED TO A SAMPLE WITHIN 8 HOURS OF COLLECTION
Turn Around A&E: N/A
Day Case: 6 Hours
In-Patient: 6 Hours
Out-Patient: 24 Hours
GP: N/A
Send to Blood Sciences LGI
Contact For further details please contact Leeds Pathology customer services: leedsth-tr.pathologycustomerservice@nhs.net.
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: Store at 2-8oC centrifuged prior to analysis if delayed
Sample REQ Blood
Ref. Range Notes Blood Sciences reference ranges are available through the useful information and links page:
https://www.leedsth.nhs.uk/a-z-of-services/pathology/blood-sciences/useful-information-and-links/
Units mg/L
Telepath CARB2L
ICE Codes LCARB