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Laboratory Medicine

Test catalogue

Risperidone and Metabolite, Serum

Test Name

Risperidone and Metabolite, Serum

Red Tube with thin top Specimen Type / Requirements

Container Type = 1 Red Top

Minimum Volume = 3 ml Serum

Tubes must fill to at least ½ or greater of its vacuum capacity

Specimen Handling

Collection Instructions: Collect sample in a red top tube. Collect trough specimen just prior to next dose or post-dose at a time ≥75% of the dosing interval. Write your initials, date and time of collection on the collection label.

Laboratory Staff Instructions Separate from cells within 2 hours of collection. Store and send frozen.

Rejection Criteria: Plasma, Gross hemolysis, Unlabeled or samples of non sufficient quantity.

Transportation: Send sample to core lab as soon as possible.

Required Documentation

Turnaround Time (TAT)

10 Days

Test Utilization

Reference Value

19.0 - 49.0 nmol/L

9-Hydroxyrisperidone: 19.0 - 211.0 nmol/L

Combined (Risperidone + 9-hydroxyrisperidone)

Therapeutic 19.0 - 260.0 nmol/L

Test Code




Testing Location

Referred Out – ON, Canada (ROICL02)

Other Information

Last Updated: October 03, 2019