Version 2.73

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 body fluids other than serum, plasma, blood, urine, and cerebrospinal fluid. When a LOINC term with the System "Body fld" is used, the specific specimen source or body fluid type should be reported elsewhere with the result. Where more specific terms for pleural, peritoneal, synovial fluid, etc. exist, we encourage you to use the more specific terms. In contrast to "Body fld", the System "Asp" in LOINC represents the fluid withdrawn during an aspiration procedure from an abnormal collection of fluid, such as from an abscess or cyst. "Asp" is used for abnormal fluid collections that are aspirated, while "Body fld" is used for named body fluids, such as synovial fluid or peritoneal fluid, that are not inherently pathologic. Source: Regenstrief LOINC

Fully-Specified Name

Body fld

Additional Names

Short Name
Amphet Fld Ql Scn
Display Name
Amphetamine Screen Ql (Body fld)
Consumer Name Alpha
Amphetamine, Body fluid

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

Basic Attributes

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

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)
nl-NLDutch (Netherlands)
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-MXSpanish (Mexico)
Anfetamina:Presencia o umbral:Punto temporal:Fluído corporal:Ordinal:Pantalla de toxicología
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