78891-9
LaboratoryTricyclic antidepressants [Presence] in Hair
Definition
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 also is less invasive than urine or blood sampling. Drawbacks for hair analysis include expense, and environmental contamination of the specimen. Tricyclic antidepressants tested for are: amitriptyline, nortriptyline, amoxapine, clomipramine, norclomipramine, désipramine, doxepine, imipramine, maprotiline, and trimipramine.
LOINC 6-Axis Classification
Component
Tricyclic antidepressants
Property
PrThr
Time Aspect
Pt
System
Hair
Scale Type
Ord
Method Type
N/A
Details
Class
DRUG/TOX
Order/Observation
Both
Short Name
Tricyclics Hair Ql
Display Name
Tricyclic antidepressants Ql (Hair)
Related Names
Frequently Asked Questions
What is LOINC code 78891-9?
LOINC code 78891-9 identifies "Tricyclic antidepressants [Presence] in Hair". 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 also is less invasive than urine or blood sampling. Drawbacks for hair analysis include expense, and environmental contamination of the specimen. Tricyclic antidepressants tested for are: amitriptyline, nortriptyline, amoxapine, clomipramine, norclomipramine, désipramine, doxepine, imipramine, maprotiline, and trimipramine.
What does 78891-9 measure?
This code measures Tricyclic antidepressants 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.