78790-3

Amphetamine [Presence] in Body fluid by Screen method

Active

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.

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 In contrast to "Body fld", the System "Asp" in LOINC represents the fluid withdrawn during an aspiration procedure from an abnormal collection of fluid, such as from an abscess or cyst.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

LOINC Names Get Info

Fully-Specified Name

Amphetamine:PrThr:Pt:Body fld:Ord:Screen

Long Common Name

Amphetamine [Presence] in Body fluid by Screen method

Short Name

Amphet Fld Ql Scn

Display Name

Amphetamine Screen Ql (Body fld)

Consumer Name Alpha Get Info

Amphetamine, Body fluid

Part Model Get Info

• Component

  Amphetamine
  LP18868-7

  • Analyte

    Amphetamine
    LP18868-7

    • Component Numerator

      Amphetamine
      LP18868-7

      • Component Numerator Core

        Amphetamine
        LP18868-7

      • Component Numerator Core Suffix

        NULL
         

    • Component Denominator

      NULL
       

      • Component Denominator Core

        NULL
         

      • Component Denominator Core Suffix

        NULL
         

  • Challenge

    NULL
     

  • Adjustment

    NULL
     

  • Count

    NULL
     

• Property

  PrThr
  LP217195-9

• Time

  Pt
  LP6960-1

  • Time Core

    Pt
    LP6960-1

  • Time Modifier

    NULL
     

• System

  Body fld
  LP7238-1

  • System Core

    Body fld
    LP7238-1

  • Super System

    NULL
     

• Scale

  Ord
  LP7751-3

• Method

  Screen
  LP6503-9

Example Answer List: LL360-9

Basic Attributes

Class

DRUG/TOX

Type

Laboratory

First Released

Version 2.54

Last Updated

Version 2.58 (MIN)

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

Member of these Panels

Member of these Groups Get Info

Language Variants Get Info

Related Names

• Addiction
• Amph
• Amphet
• Amphetam
• Amphetamines
• Ampht
• B/F
• BF
• bod
• Bodies
• Body fluid
• Body fluid, unsp
• DRUG/TOXICOLOGY
• Drugs
• Drugs of abuse
• Fl
• Fld
• FLU
• Fluid
• Illicit
• Ordinal
• Point in time
• PotentialForAbuse
• PR
• QL
• Qual
• Qualitative
• Random
• Scn
• Scr
• Screen
• Scrn
• Speed

LOINC Terminology Service (API) using HL7^® FHIR^® Get Info

Requests to this service require a free LOINC username and password. Below is a sample of the possible capabilities. See the LOINC Terminology Service documentation for more information.

CodeSystem lookup

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

Third Party Copyright

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LOINC Copyright

Copyright © Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.