Lorazepam LORAZ
Method(s) | High Performance Liquid Chromatography |
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Specimen Required | |
Collect | One 6 mL gray (potassium oxalate/sodium fluoride) top tube. Also acceptable: red, lavender (EDTA), pink (K2EDTA) or green (sodium heparin) top tubes. |
Transport | 2 mL serum or plasma refrigerated (Min: 1 mL) |
Remarks | Patient prep: Timing of specimen collection: Pre-dose (trough) draw-At steady state concentration. |
Stability | After separation from cells: Ambient: 1 week; Refrigerated: 2 weeks; Frozen: 3 years (Avoid repeated freeze/thaw cycles) |
Unacceptable Conditions | Gel separator tubes. Plasma or whole blood collected in light blue (sodium citrate) top tubes. |
Schedule | Tue, Fri |
Billing Code | 5011533 |
CPTCode | 80346 (Alt code: G0480) |
Notes | Separate serum/plasma from cells within 2 hours of collection. |
Preferred Specimen Collection Device(s) | |
Reference Interval | |
Dose-Related Range:50-240 ng/mL - Dose (adult) 1-10 mg/d |