Log In

Part Description

LP207910-3   free DRUG/TOX
The measurement of free (unbound) drug concentrations in plasma is important for certain drugs and has two advantages over measurement of total concentration: (1) the free concentration is independent of changes in plasma binding (e.g., due to changes in albumin), and (2) the free concentration is more directly related to both the efficacy and toxicity of the drug PMID: 6636249. For most drugs and the majority of patients, measuring the free and total concentrations is not necessary. However, for certain drugs, including some anticonvulsants and antibiotics, and specific patient populations, such as critically ill or immunosuppressed patients, the free concentration is a better indicator of therapeutic effect and potential toxicity. Source: Regenstrief LOINC

LOINC Names Get Info

Fully-Specified Name
Theophylline.free:MCnc:Pt:Ser/Plas:Qn:
Long Common Name
Theophylline free [Mass/volume] in Serum or Plasma
Short Name
Theophylline free SerPl-mCnc
Display Name
Theophylline free [Mass/Vol]
Consumer Name Alpha Get Info
Free theophylline, Blood

Part Model Get Info

  • Component
    Theophylline.free
    LP207766-9
    • Analyte
      Theophylline.free
      LP207766-9
      • Component Numerator
        Theophylline.free
        LP207766-9
        • Component Numerator Core
          Theophylline.free
          LP207766-9
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        NULL
         
        • Component Denominator Core
          NULL
           
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    MCnc
    LP6827-2
  • Time
    Pt
    LP6960-1
  • System
    Ser/Plas
    LP7576-4
    • System Core
      Ser/Plas
      LP7576-4
    • Super System
      NULL
       
  • Scale
    Qn
    LP7753-9
  • Method
    NULL
     

Basic Attributes

Class
DRUG/TOX
Type
Laboratory
First Released
Version 2.56
Last Updated
Version 2.56 (ADD)
Order vs. Observation
Both

Language Variants Get Info

TagLanguageTranslation
cs-CZCzech (Czechia)Theofylin volný:Hmotnostní koncentrace:Časový bod:Sérum/plazma:Kvantitativní:
el-GRGreek (Greece)Θεοφυλλίνη.ελεύθερη:MCnc:Pt:Ορός/Πλάσμα:Qn:
Synonyms: DRUG/TOX MCnc Pt Qn Θεοφυλλίνη Θεοφυλλίνη.ελεύθερη Ορός Ορός/Πλάσμα Πλάσμα
es-ESSpanish (Spain)Teofilina libre:Concentración de masa:Punto temporal:Suero o Plasma:Qn:
Synonyms: Cuantitativo
es-MXSpanish (Mexico)Teofilina libre:Concentración de masa:Punto temporal:Suero o Plasma:Cuantitativo:
fr-FRFrench (France)Théophylline libre:Masse/Volume:Ponctuel:Sérum/Plasma:Numérique:
it-ITItalian (Italy)Teofillina.libera:MCnc:Pt:Siero/Plasma:Qn:
Synonyms: Concentrazione di Massa Livelli farmacologici e tossicologia Plasma Punto nel tempo (episodio) Siero Siero o Plasma
nl-NLDutch (Netherlands)theofylline.vrij:massa/volume:moment:serum of plasma:kwantitatief:
zh-CNChinese (China)茶碱.游离型:质量浓度:时间点:血清/血浆:定量型:
Synonyms: 1,3-二甲基黄嘌呤;二甲基黄嘌呤;茶硷;氨茶碱 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 时刻;随机;随意;瞬间 毒品 毒品类 水平;浓度;质量浓度(单位体积) 游离 茶碱（1,3-二甲基黄嘌呤、二甲基黄嘌呤、茶硷、氨茶碱）.游离型（游离）;游离型（游离）茶碱（1,3-二甲基黄嘌呤、二甲基黄嘌呤、茶硷）.游离型（游离） 药品类 药物 药物/毒理学;药物/毒理学试验;药物毒理学试验;药物毒理学试验类 药物类 血清或血浆 非蛋白结合型 非蛋白质结合型

Example Units

UnitSource
mg/LExample UCUM Units

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=80967-3