Phenobarbital to MedTox - LG4895
| Sunquest Code: | XMISC | ||
| Epic Code: | LAB4909 | Epic Name: | Send Outs Misc Tests |
| Methodology: | Immunoassay | ||
| Turnaround Time: | Specimens are sent to reference laboratory Mon-Fri; results are reported within 1-2 days. | ||
| Special Instructions: | After hours stat specimens are sent to the reference laboratory 24 hours/day. Additional fees will apply. | ||
Collection Instructions
| Specimen: | Blood |
| Optimal Volume: | 2 mL |
| Minimum\Peds Volume: | 0.8 mL |
| Container: | Red (no gel) (Green (lithium heparin, no gel), Green (sodium heparin, no gel)) |
| Collection Instructions: | Trough level is preferred; collect immediately before dose. It is advisable to monitor at the same time in the dosing schedule. |
| Causes for Rejection: | Results may be altered if collected in a gel tube. |
Processing and Shipping
| Specimen Processing: | Centrifuge and aliquot 1 mL, 0.3 mL minimum. Store at room temperature. |
| Shipping Instructions: | Ship at room temperature. |
| Stability: | Up to 3 days refrigerated; for longer storage freeze. |
| Test Performed at or Referral Lab | Lab Sendouts (MedTox) |
| Referral Lab number: | 93 |
Interpretive
| Reference Range: | 15-40 mg/L |
| Use: | Monitor therapeutic drug level of Phenobarbital; use with Primidone levels to monitor therapeutic drug level of Primidone; evaluate Phenobarbital toxicity. Half-life is 50-120 h (adult) and 40-70 h (child). |
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