Clonazepam

0090055
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High
Normal
Ordering Recommendation

Optimize drug therapy and monitor patient adherence.

Mnemonic
CLON
Methodology

Quantitative Liquid Chromatography-Tandem Mass Spectrometry

Performed

Tue, Fri

Reported

1-5 days

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation

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

Collect

Gray (Potassium Oxalate/Sodium Fluoride). Also acceptable: Plain Red, Green (Sodium Heparin), Lavender (K2 or K3EDTA) or pink (K2EDTA).

Specimen Preparation

Separate serum or plasma from cells ASAP or within 2 hours of collection. Transfer 2 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 1 mL)

Storage/Transport Temperature

Refrigerated.

Unacceptable Conditions

Gel separator tubes. Plasma or whole blood collected in light blue (sodium citrate). Hemolyzed specimens.

Remarks
Stability

After separation from cells: Ambient: 1 week; Refrigerated: 2 weeks; Frozen: 3 years (Avoid repeated freeze/thaw cycles).

Reference Interval

Effective November 18, 2013

Dose-Related Range 20-70 ng/mL - Dose (Adult) 1-8 mg/d
Toxic Greater than 80 ng/mL

Interpretive Data

Adverse effects may include drowsiness, headache, fatigue and ataxia.

This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.

Compliance Category

Laboratory Developed Test (LDT)

Note
Hotline History
N/A
CPT Codes

80346 (Alt code: G0480)

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Components
Component Test Code* Component Chart Name LOINC
0090055 Clonazepam 3494-2
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • 340 Clonazepam
  • Clonopin, S
  • Klonopin
  • Klonopin Wafers
  • Nitrazepam
  • Nitrozepane
  • Rivotril
Clonazepam