Mnemonic MISC
CPT 80342
Test Code 3509949
Synonyms Invega®, 9-hydroxyrisperidone
Test Includes  
Specimen Serum
Volume 1.0 mL
Container Red Top Tube. DO NOT use SST.
Special Instructions  
Specimen Prep Separate serum or plasma from cells within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube.
Storage Refrigerate
Transport Temp Refrigerated
Stability Rm Temp 2 weeks
Stability Refrig 2 weeks
Stability Frozen 2 months
Methodology Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS)
Rejection Criteria Gel separator tubes, light blue (citrate), or yellow (SPS or ACD solution).  
Reference Value 20-60 ng/mL 
Performed/TAT Two times per week   2 - 7 days