Carbamazepine Total
| Abbrev Code: | CARB | ||
| Order Code: | LAB21 | Order Name: | Carbamazepine Total |
| Synonyms: | Tegretol | ||
| Methodology: | Homogenous microparticle agglutination immunoassay (KIMS) | ||
| CPT Codes: | 80156 x1, 80156 x1 | ||
| Turnaround Time: | Performed and reported 24 hours/day. | ||
Collection Instructions
| Specimen: | Blood |
| Optimal Volume: | 2.5 mL |
| Minimum\Peds Volume: | 0.6 mL |
| Container: | Red (no gel) Alternate Containers: Purple (EDTA) |
| Collection Instructions: | Trough level is preferred; collect immediately before dose. It is advisable to monitor at the same time in dosing schedule. |
Processing and Shipping
| Specimen Processing: | Centrifuge and aliquot within 2 hours of collection 1.25 mL, 0.2 mL minimum. Store in refrigerator. |
| Shipping Instructions: | Ship at refrigerated temperature. Alternatively, ship on dry ice. |
| Stability: | 2 days at room temperature; 7 days refrigerated; 4 weeks frozen. |
| Test Performed at or Referral Lab | Chemistry (Roche-Grand Itasca, Roche-Range, Roche-UMMC East) |
Interpretive
| Critical Range: | Greater than 15 ug/mL |
| Therapeutic Range: | 4-12 ug/mL (parent); 0.4-4.0 ug/mL (10,11 epoxide-metabolite); serum values may be 10% lower than plasma values. |
| Use: | Monitor carbamazepine therapy. |
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