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Test Code RISPRSO Risperidone and 9-Hydroxyrisperidone (757)

Additional Codes

MedTox Laboratories Test Code: 757

Useful For

Therapeutic Drug Management

Synonyms/Keywords

Risperdal

Specimen Requirements

Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
Serum Red Top Tube (RTT)   3 mL 0.6 mL  
Plasma Lithium-heparin Green Top Tube or Sodium-heparin Green Top Tube (GTT)   3 mL 0.6 mL  

Collection/Processing Instructions

Trough levels are most reproducible Gel-barrier tubes are not recommended

Specimen Stability Information

Specimen Type Temperature Time
Serum or Plasma Ambient < 3 days
Refrigerated

14 days

Frozen 6 months

Reference Range Information

Reference Range
Expected steady state concentrations of risperidone and 9-hydroxyrisperidone (combined total) in patients receiving recommended daily dosages: 10 - 120 ng/ml.

Performing Laboratory Name

Medtox Laboratories

Referral Laboratory Information

Address Telephone Website Link Marshfield Lab Account #

402 West County Road D

St. Paul, MN 55112

800-832-3244 (Main)

888-310-2264 (Team Emerald)

www.medtox.com 1080

Performing Information

Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Medtox Laboratories Performed Monday through Friday 3 days Liquid Chromatography/Tandem Mass Spectrometry (LC/MS-MS)

CPT Codes

CPT Modifier
(if needed)
Quantity Description Comments
80342   1    

Outreach CPT Codes

CPT Modifier
(if needed)
Quantity Description Comments
80342   1    

Ordering Applications

Ordering Application Description
Centricity Rispridone & 9-Hydroxyrisperidone (757)
Cerner None