Clonidine (Catapres)

• CPT Code: 82542
• LOINC: 3495-9
• Specimen Type: Red or Green nongel
• Frequency: Setup: Daily; analytic time 5 days
• Instructions: 5.0mL serum from red nongel tube. Alt/plasma from green nongel tube. Min 1.2mL will not allow repeat analysis. Refrigerate. Trough level best.
• Text: Reference Range: 1.00 - 2.00 ng/mL Sedation has been associated with serum clonidine concentrations greater than 1.5 ng/mL Toxic concentration has not been established.
• Methodology: Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)