CAR
Carbamazepine, Serum or Plasma
EPIC Test Procedure Code: LAB2044
Synonyms:
Tegretol
Carbatrol
Performing Lab:
Saint Luke's Regional Laboratories
Container Type:
Serum gel tube or green top (lithium heparin) tube
Specimen Type:
Serum or plasma
Preferred Volume:
1 mL
Minimum Volume:
0.5 mL
Collection Procedure:
1. The recommended draw time for a therapeutic drug level is immediately prior to the next dose (trough specimen).
2. Indicate the specimen type on the request form.
3. Label the specimen appropriately.
Specimen Processing:
Separate the serum or plasma from the cells within 2 hours of collection.
Store and Transport:
Refrigerated
Stability:
Gel barrier tube:
Refrigerated - 24 hours
Room temperature - 24 hours
CPT Codes:
80156 - Carbamazapine (EAP 30011000)
Test Schedule:
Monday through Sunday
Method:
Immunoturbidimetric
Reference Ranges:
Therapeutic concentration:
4 - 12
ug/mL
Critical value:
> 20
ug/mL