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HelpTest ID FRISP Risperidone (Risperdal) and 9-Hydroxyrisperidone
Specimen Required
Submit only 1 of the following specimens:
Plasma
Specimen Type: Plasma (Preferred)
Container/Tube: Green-top (sodium heparin) tube(s).
Specimen volume: 3 mL
Collection Instructions: Draw blood in a green-top (sodium heparin) tube(s), plasma gel tube is not acceptable. Spin down and send 3 mL sodium heparin plasma refrigerated in a plastic vial.
Serum
Specimen Type: Serum
Container/Tube: Red-top tube, serum gel is not acceptable.
Specimen volume: 3 mL
Collection Instructions: Draw blood in a plain red-top tube(s), serum gel tube is not acceptable. Spin down and send 3 mL of serum refrigerated in a plastic vial.
Method Name
Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Reporting Name
Risperidone and MetaboliteSpecimen Type
VariesSpecimen Minimum Volume
0.6 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Varies | Refrigerated (preferred) | 7 days | |
| Frozen | 180 days | ||
| Ambient | 72 hours |
Reference Values
Units: ng/mL
Expected steady state concentrations of risperidone and 9-hydroxyrisperidone (combined total) in patients receiving recommended daily dosages: 10 - 120 ng/mL.
Day(s) Performed
Monday through Sunday
Report Available
3 to 7 daysPerforming Laboratory
Medtox Laboratories, Inc.Test Classification
This test was developed and its performance characteristics determined by LabCorp. It has not been cleared or approved by the Food and Drug Administration.CPT Code Information
80342
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| FRISP | Risperidone and Metabolite | 55157-2 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| Z1183 | Risperidone (Risperdal) | 9393-0 |
| Z1056 | 9-Hydroxyrisperidone | 9383-1 |
| Z1057 | Combined Total | 9394-8 |