78771-3
Laboratory9-Hydroxyrisperidone [Mass/mass] in Hair
Definition
In general hair analysis provides a longer surveillance window for drug use than other methods because hair retains drugs longer (weeks or months, compared with days detectable in blood or urine). Collecting hair specimens is also less invasive than urine or blood sampling and provides a simple and fast method for detection and quantification of Risperidone (RSP) and its major metabolite, 9-hydroxyrisperidone (9-OH-RSP). One study suggests a better relationship between the administered dose and hair concentration for 9-OH-RSP, than for the parent drug. [PMID: 19595645] Drawbacks for hair analysis include expense, and environmental contamination of the specimen.
LOINC 6-Axis Classification
Component
9-Hydroxyrisperidone
Property
MCnt
Time Aspect
Pt
System
Hair
Scale Type
Qn
Method Type
N/A
Details
Class
DRUG/TOX
Order/Observation
Both
Short Name
9OH-risperidone Hair-mCnt
Display Name
9-Hydroxyrisperidone (Hair) [Mass/Mass]
Related Names
Frequently Asked Questions
What is LOINC code 78771-3?
LOINC code 78771-3 identifies "9-Hydroxyrisperidone [Mass/mass] in Hair". In general hair analysis provides a longer surveillance window for drug use than other methods because hair retains drugs longer (weeks or months, compared with days detectable in blood or urine). Collecting hair specimens is also less invasive than urine or blood sampling and provides a simple and fast method for detection and quantification of Risperidone (RSP) and its major metabolite, 9-hydroxyrisperidone (9-OH-RSP). One study suggests a better relationship between the administered dose and hair concentration for 9-OH-RSP, than for the parent drug. [PMID: 19595645] Drawbacks for hair analysis include expense, and environmental contamination of the specimen.
What does 78771-3 measure?
This code measures 9-Hydroxyrisperidone in Hair. It belongs to the DRUG/TOX class in the LOINC classification.
What is LOINC?
LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.