Propoxyphene
| Abbrev Code: | XMISC | ||
| Order Code: | LAB4909 | Order Name: | Propoxyphene Level |
| Synonyms: | Darvocet; Wygesic; Darvon | ||
| Methodology: | Liquid chromatography/Tandem mass spectrometry | ||
| CPT Codes: | 80367 x1 | ||
| Test Includes: | Propoxyphene and Norpropoxyphene | ||
| Turnaround Time: | Specimens are sent to reference laboratory Mon-Fri; results are reported within 7 days. | ||
Collection Instructions
| Specimen: | Blood |
| Optimal Volume: | 4 mL |
| Minimum\Peds Volume: | 1.4 mL |
| Container: | Red (no gel) Alternate Containers: Green (lithium heparin, no gel), Green (sodium heparin, no gel) |
| Collection Instructions: | Trough levels are the most reproducible. |
Processing and Shipping
| Specimen Processing: | Centrifuge and aliquot 2 mL, 0.6 mL minimum. Store at room temperature. |
| Shipping Instructions: | Ship at room temperature. |
| Stability: | 3 days at room temperature; for longer storage refrigerate or freeze. |
| Test Performed at or Referral Lab | Lab Sendouts (MedTox) |
| Referral Lab number: | 108 |
Interpretive
| Critical Range: | Propoxyphene and Metabolite: Greater than or equal to 5000 ng/mL |
| Reference Range: | Propoxyphene: 100-400 ng/mL; Norpropoxyphene: 200-2200 ng/mL; Propoxyphene & metabolite: 300-2600 ng/mL |
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