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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
Phenytoin.total/Phenytoin.free:MRto:Pt:Ser/Plas:Qn:
Long Common Name
Phenytoin.total/Phenytoin.free [Mass Ratio] in Serum or Plasma
Short Name
Phenytoin Total/Free SerPl
Display Name
Phenytoin.total/Phenytoin.free [Mass ratio]
Consumer Name Alpha Get Info
Phenytoin.total/Free Phenytoin, Blood

Part Model Get Info

  • Component
    Phenytoin.total/Phenytoin.free
    LP308005-0
    • Analyte
      Phenytoin.total/Phenytoin.free
      LP308005-0
      • Component Numerator
        Phenytoin.total
        LP18627-7
        • Component Numerator Core
          Phenytoin.total
          LP18627-7
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        Phenytoin.free
        LP32115-5
        • Component Denominator Core
          Phenytoin.free
          LP32115-5
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    MRto
    LP6834-8
  • 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 1.0k
Last Updated
Version 2.42 (MIN)
Order vs. Observation
Observation

Language Variants Get Info

TagLanguageTranslation
cs-CZCzech (Czechia)Fenytoin.celkový/fenytoin.volný:Hmotnostní poměr:Časový bod:Sérum/plazma:Kvantitativní:
el-GRGreek (Greece)Φαινυτοΐνη.ολική/Φαινυτοΐνη.ελεύθερη:MRto:Pt:Ορός/Πλάσμα:Qn:
Synonyms: DRUG/TOX MRto Pt Qn Ορός Ορός/Πλάσμα Πλάσμα Φαινυτοΐνη Φαινυτοΐνη.ελεύθερη Φαινυτοΐνη.ολική
es-ARSpanish (Argentina)fenitoína.total/fenitoína.libre:relación de masa:punto en el tiempo:suero/plasma:cuantitativo:
es-ESSpanish (Spain)Fenitoína total/Fenitoína libre:Relacion de Masa:Punto temporal:Suero o Plasma:Qn:
Synonyms: Cuantitativo
es-MXSpanish (Mexico)Phenytoin.total/Phenytoin.libre:Relación de masa:Punto temporal:Suero o Plasma:Cuantitativo:
et-EEEstonian (Estonia)Fenütoiin.üld/fenütoiin.vaba:MRto:Pt:S/P:Qn:
Synonyms: Juhuslik Kvantitatiivne Plasma Seerum Seerum või plasma
fr-CAFrench (Canada)Phénytoïne.totale/Phénytoïne.libre:Ratio de masse:Temps ponctuel:Sérum/Plasma:Quantitatif:
fr-FRFrench (France)Diphénylhydantoïne totale/diphénylhydantoïne libre:Masse ratio:Ponctuel:Sérum/Plasma:Numérique:
fr-BEFrench (Belgium)Phénytoine.totale/Phénytoïne.libre:Ratio de masse:Temps ponctuel:Sérum/Plasma:Quantitatif:
Synonyms: Rapport de masse
it-ITItalian (Italy)Fenitoina.totale/Fenitoina.libera:MRto:Pt:Siero/Plasma:Qn:
Synonyms: Fenitoina Libera Livelli farmacologici e tossicologia Plasma Punto nel tempo (episodio) Rapporto di Massa Siero Siero o Plasma
ko-KRKorean (Korea, Republic Of)총페니토인/유리페니토인:질량비:검사시점:혈청/혈장:정량:
nl-NLDutch (Netherlands)fenytoïne.totaal/fenytoïne.vrij:massaverhouding:moment:serum of plasma:kwantitatief:
pt-BRPortuguese (Brazil)Fenitoína.total/Fenitoína.livre:MCrto:Pt:Sor/Plas:Qn:
Synonyms: Diphenylhydantoin; Dilantin; DPH; Dilj; DI-HYDAN; Epanutin; Fenantoin; Lehydan; Phenhydan; Sinergina; Zentropil; Phenytoin Total/Free; mRto; Mass concentration ratio; Point in time; Random; SerPl; SerPlas; SerP; Serum; SR; Plasma; Pl; Plsm; Quantitative; QNT; Quant; Quan; Drugs; DRUG/TOXICOLOGY; DRUG/TOXICOLOGY
ru-RURussian (Russian Federation)Фенитоин.общий/Фенитоин.свободный:МассОтн:ТчкВрм:Сыв/Плаз:Колич:
Synonyms: Количественный Масс отношение Плазма Сыворотка Сыворотка или Плазма Точка во времени;Момент
tr-TRTurkish (Turkey)Fenitoin.total/Fenitoin.serb:KütlOr:Zmlı:Ser/Plaz:Kant:
zh-CNChinese (China)苯妥英.总计/苯妥英.游离型:质量比率:时间点:血清/血浆:定量型:
Synonyms: C15H12N2O2;二苯乙内酰脲;苯妥营;二苯基乙内酰脲;二苯尿囊素 全体数量 全部 共计 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 总 总和 总数 总苯妥英;苯妥英.总;苯妥英总计;苯妥英（二苯乙内酰脲、二苯基乙内酰脲、二苯尿囊素、苯妥营）.总计 总量 总额 时刻;随机;随意;瞬间 来自于同一体系的两种分析物的质量之比;质量比 毒品 毒品类 汇总 游离 游离型苯妥英;游离苯妥英;苯妥英.游离;苯妥英（二苯乙内酰脲、二苯基乙内酰脲、二苯尿囊素、苯妥营）.游离型 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

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=14337-0