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Laboratory Test Directory

Clonazepam

Components

Name Method Department Units
Clonazepam Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Send Out ng/mL

Specimen Requirements

Serum Spun, Plasma Spun

Container Type Container Size Specimen Volume
Preferred

Red tube, (no anticoagulant), No Gel

6 mL 2 mL
Alternate

Green tube (Sodium heparin), No Gel

6 mL 2 mL
Alternate

Purple tube (EDTA)

6 mL 2 mL
Alternate

Gray tube (Sodium Fluoride)

2 mL 2 mL
Stability

Room temperature - 1 week(s)
Refrigerated - 2 week(s)
Frozen - 36 month(s)

Specimen Preparation

  • Centrifuge within 2 hours, separate supernatant and refrigerate
  • Avoid repeated freeze/thaw cycles

Reasons for Rejection

  • Collected in tube with gel separator
  • Wrong collection tube
  • Not centrifuged within time frame
  • Hemolyzed specimen

Comments

Patient Preparation: Timing of specimen collection: Pre-dose (trough) draw - At steady state concentration

CPT Code

  • 80346