LOINC
Version 2.67

78790-3Amphetamine [Presence] in Body fluid by Screen methodActive

Term Description

Body fluids include gastric, bile, and pleural fluid. Pleural fluid, bile, etc. may be used for medico-legal testing when blood or urine is not available.
Source: Regenstrief LOINC

Part Descriptions

LP18868-7   Amphetamine
Amphetamine (AMPH) is a drug that stimulates both the central and peripheral nervous systems and is used to treat attention-deficit/hyperactivity disorder, narcolepsy and obesity. [PMID: 17209801] AMPH increases extracellular monoamine neurotransmitters in the brain including dopamine, serotonin and norepinephrine. AMPH promotes presynaptic release of the neurotransmitters rather than blocking their re-uptake. Physiological responses to AMPH use include increased blood pressure, increased heart rate, increased body temperature, relaxed bronchial muscle and depressed appetite. Abuse of AMPH can cause powerful psychological dependence, tolerance, mild physical dependence associated with tachycardia, restlessness, irritability, insomnia, personality changes and an intense form of chronic intoxication psychosis similar to schizophrenia. Long-term users of AMPH can experience depression, impaired memory and motor skills most likely due to a drop in dopamine transporters and damage to dopaminergic and serotonergic neurons. Excretion of AMPH is in the urine and the rate of elimination is dependent on the pH of the urine. Urine with an alkaline pH has an excretion rate of 18-34 hours while that of acid urine is 7-14 hours.(Tietz Fundamentals of Clinical Chemistry and Molecular Diagnostics, Seventh Edition; Carl A. Burtis; David E. Bruns) Source: Regenstrief LOINC

LP7238-1   Body fld
The LOINC "Body fld" System represents any body fluid that does not already have its own named System in LOINC, such as cochlear fluid or chyle. "Body fld" is not a high-level concept that includes all body fluids. Source: Regenstrief LOINC

Fully-Specified Name

Component
Amphetamine
Property
PrThr
Time
Pt
System
Body fld
Scale
Ord
Method
Screen

Additional Names

Short Name
Amphet Fld Ql Scn
Display Name
Amphetamine Screen Ql (Body fld)

Basic Attributes

Class
DRUG/TOX
Type
Laboratory
First Released
Version 2.54
Last Updated
Version 2.58
Change Reason
The PrThr property is used for LOINC terms whose results are reported using an ordered categorical scale, regardless of whether or not an internal threshold was used to make that determination. This change was approved by the Laboratory LOINC Committee in June 2016.
Order vs. Observation
Both

Example Answer List LL360-9

Source: Regenstrief Institute

Answer Code Score Answer ID
Positive Copyright http://snomed.info/sct ID:10828004 Positive (qualifier value) LA6576-8
Negative Copyright http://snomed.info/sct ID:260385009 Negative (qualifier value) LA6577-6

Member of these Panels

LOINC Long Common Name
91054-7 Drugs of abuse panel - Body fluid

Member of these Groups

LG37607-5 Amphetamine|ANYProp|ANYTm|ANYSys|ANYMeth

Language Variants Get Info

zh-CNChinese (CHINA)
苯丙胺:存在情况或阈值:时间点:体液:序数型:毒理学筛查试验
nl-NLDutch (NETHERLANDS)
amfetamine:aanwezigheid:moment:lichaamsvocht:ordinaal:screening
fr-BEFrench (BELGIUM)
Amphétamine:PrThr:Temps ponctuel:Liquide biologique:Ordinal:Dépistage
fr-CAFrench (CANADA)
Amphétamine:Présence-Seuil:Temps ponctuel:Liquide biologique:Ordinal:Dépistage
fr-FRFrench (FRANCE)
Amphétamine:Présence/Seuil:Ponctuel:Liquide biologique:Qualitatif:Dépistage
it-ITItalian (ITALY)
Anfetamina:PrThr:Pt:Liquido corporeo:Ord:Screening
ru-RURussian (RUSSIAN FEDERATION)
Амфетамин:PrThr:ТчкВрм:Тело ждк:Пор:Скрининг
es-ESSpanish (SPAIN)
Anfetamina:PrThr:Punto temporal:Fluido corporal:Ord:Cribado toxicológico
tr-TRTurkish (TURKEY)
Amfetamin:MevcEşik:Zmlı:Vücut sv:Srl:Tarama

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=78790-3