Lorazepam Drug Level
Label Mnemonic: LORAZ
Epic Lab Code: LAB3519
Downtime Form: A-1a Miscellaneous Request
Commercial Mail-out Laboratory
5231 RCP
356-8593
Specimen(s):
Serum or Plasma
Specimen Instructions:
Timing of specimen collection: Pre-dose (trough) draw - At steady state concentration.
Collection Medium:
Red top tube 5 mL (Clot Activator)
Minimum:
Preferred Minimum: 2.0 mL serum
Absolute Minimum: 1.0 mL serum
Rejection Criteria:
Gel separator tubes. Plasma or whole blood collected in light blue (sodium citrate).
Delivery Instructions:
Deliver to laboratory within 1 hour of collection.
Turn Around Time:
1-5 days upon receipt at reference laboratory
Reference Range:
Dose-Related Range: 50 - 240 ng/mL - Dose (Adult): 1-10 mg/d Toxic: > 300 ng/mL
Interpretive Data:
Adverse effects may include respiratory depression, sedation, dizziness, weakness and lethargy.
Comments:
Avoid use of separator tubes and gels.
Methodology:
Quantitative Liquid Chromatography-Tandem Mass Spectrometry
CPT Code:
80346