Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Serum or plasma
Red-top (no additive) tube or green-top (heparin) tube; gel-barrier tubes not recommended
Transfer separated serum or plasma to a plastic transport tube. Trough levels are most reproducible.
Submission/transport (<3 days): Room temperature. For storage beyond three days, specimen should be refrigerated or frozen.
Therapeutic drug management
This test was developed and its performance characteristics determined by Labcorp. It has not been cleared or approved by the Food and Drug Administration.
Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
Expected steady state concentrations of risperidone and 9-hydroxyrisperidone (combined total) in patients receiving recommended daily dosages: 10–120 ng/mL
|Order Code||Order Code Name||Order Loinc||Result Code||Result Code Name||UofM||Result LOINC|
|716563||Risperidone (Risperdal(R)), S||716564||Risperidone, Serum||ng/mL||9393-0|
|716563||Risperidone (Risperdal(R)), S||716565||9-OH-Risperidone, Serum||ng/mL||9383-1|
|716563||Risperidone (Risperdal(R)), S||716566||Total (Risp+9-OH)||ng/mL||9394-8|
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