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Test Compendium


Test Code

  • 8567

Test Synonym

  • Risperidone

Minimum Volume

  • 1.1 mL

Specimen Requirements

  • Serum


  • Plain Red Top Tube, Transfer Tube- Serum


  • Ambient

CPT Codes

  • 82542
    *The CPT codes provided are based on AMA guidelines and are provided for informational purposes only. CPT coding is the responsibility of the billing entity. Please direct any questions regarding the CPT coding to the payer being billed.

Special Instructions

  • 3 mL Serum from a Red Top Tube (do not use serum from an SST)

Additional Information

  • Collect specimen just prior to the next dose (trough level). DO NOT USE SST (gel-barrier) , Red Top for Serum only

Specimen Stability

  • AMBIENT: 14 days REFRIGERATED: 14 days FROZEN: 14 days