Phenobarbital to MedTox
Abbrev Code: | XMISC | ||
Order Code: | LAB4909 | Order Name: | Send Outs Misc Tests |
Methodology: | Immunoassay | ||
CPT Codes: | 80184 x1 | ||
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) Alternate Containers: 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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