3969-3  Phenytoin Free [Mass/​volume] in Serum or PlasmaPhenytoin Free [Mass/​volume] in Serum or PlasmaPhenytoin.free: MCnc: Pt: Ser/​Plas: Qn:  

NAME
  Fully Specified Name: 
Component   Property   Time   System   Scale   Method
Phenytoin.free  MCnc  Pt  Ser/Plas  Qn 
  Long Common Name:  Phenytoin Free [Mass/volume] in Serum or Plasma
  Short Name:  Phenytoin Free SerPl-mCnc
  Display Name:  Phenytoin Free [Mass/Vol]

PART DEFINITION/DESCRIPTION(S)
  Part: Phenytoin.free
  Phenytoin-free levels detect the level of non-protein-bound phenytoin in the blood. It is used to measure therapeutic and toxic levels of the drug.
 
 
  Part: 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.
 
 

BASIC ATTRIBUTES
  Class/Type: DRUG/TOX/Lab
  Common Lab Results Rank: #1581
  First Released in Version: 1.0
  Last Updated in Version: 2.52
  Mass or Substance Property: M
  Order vs. Obs.: Both
  Status: Active.
Change Reason: Changed Order_Obs from 'Observation Only' to fit the current order use cases.

MEMBER OF THESE PANELS     
  This section provides information about panels that contain this LOINC code.
  LOINC   Long Common Name  
  34540-5 Phenytoin free and total panel - Serum or Plasma
  54037-7 HEDIS 2009 panel
  57820-3 HEDIS 2010 panel
  60442-1 HEDIS 2011 panel
  67767-4 HEDIS 2012 panel
  72199-3 HEDIS 2013 panel
  74234-6 HEDIS 2014 Value Sets
  

MEMBER OF THESE EQUIVALENCE GROUPS
  LG47569-5  Phenytoin.free|Pt|Ser/Plas

PARTS

Part Type    Part No.  Part Name   
Component   LP14731-1  Phenytoin.free   [Phenytoin Free] 
Property   LP6827-2  MCnc   [Mass Concentration] 
Time   LP6960-1  Pt   [Point in time (spot)] 
System   LP7576-4  Ser/Plas   [Serum or Plasma] 
Scale   LP7753-9  Qn 
Fragments for synonyms   LP20769-3  Free 

LANGUAGE VARIANTS
  Chinese (CHINA)  (From: Regenstrief-generated full translation based on part translation provided by Lin Zhang, A LOINC volunteer from China)
 
  苯妥英.游离型:质量浓度:时间点:血清/​血浆:定量型:苯妥英.游离型:质量浓度:时间点:血清/​血浆:定量型:
  Dutch (NETHERLANDS)  (From: Regenstrief-generated full translation based on part translation provided by NVKC, Dutch Society for Clinical Chemistry and Laboratory Medicine, The Netherlands)
 
  fenytoïne.vrij:massa/​volume:moment:serum of plasma:kwantitatief:fenytoïne.vrij:massa/​volume:moment:serum of plasma:kwantitatief:
  Estonian (ESTONIA)  (From: Regenstrief-generated full translation based on part translation provided by Estonian E-Health Foundation)
 
  Fenütoiin.vaba:MCnc:Pt:S/​P:Qn:Fenütoiin.vaba:MCnc:Pt:S/​P:Qn:
  French (BELGIUM)  (From: Regenstrief-generated full translation based on part translation provided by Jean M. Prevost, MD, Biopathology)
 
  Phénytoïne.libre:Concentration de masse:Temps ponctuel:Sérum/​Plasma:Quantitatif:Phénytoïne.libre:Concentration de masse:Temps ponctuel:Sérum/​Plasma:Quantitatif:
  French (CANADA)  (From: Regenstrief-generated full translation based on part translation provided by Canada Health Infoway Inc.)
 
  Phénytoïne.libre:Concentration de masse:Temps ponctuel:Sérum/​Plasma:Quantitatif:Phénytoïne.libre:Concentration de masse:Temps ponctuel:Sérum/​Plasma:Quantitatif:
  French (FRANCE)  (From: ASIP Santé (Agence des systèmes d'information partagés de santé))
 
  Phenytoin.free:MCnc:Pt:Ser/​Plas:Qn:Phenytoin.free:MCnc:Pt:Ser/​Plas:Qn:Diphénylhydantoïne libre [Masse/​Volume] Sérum/​Plasma ; Numérique
  German (GERMANY)  (From: Institute for Medical Documentation and Information (DIMDI))
 
  Phenytoin.frei:MKnz:Pkt:Ser/​Plas:Qn:Phenytoin.frei:MKnz:Pkt:Ser/​Plas:Qn:
  Italian (ITALY)  (From: Regenstrief-generated full translation based on part translation provided by Consiglio Nazionale delle Ricerche)
 
  Fenitoina.libera:MCnc:Pt:Siero/​Plasma:Qn:Fenitoina.libera:MCnc:Pt:Siero/​Plasma:Qn:
  Korean (KOREA, REPUBLIC OF)  (From: Korean Ministry for Health, Welfare, and Family Affairs)
 
  유리페니토인:질량농도:검사시점:혈청/​혈장:정량:유리페니토인:질량농도:검사시점:혈청/​혈장:정량:
  Portuguese (BRAZIL)  (From: HL7 Brazil Institute)
 
  Fenitoína.livre:MCnc:Pt:Sor/​Plas:Qn:Fenitoína.livre:MCnc:Pt:Sor/​Plas:Qn:
  Russian (RUSSIAN FEDERATION)  (From: Regenstrief-generated full translation based on part translation provided by Yaroslavl State Medical Academy)
 
  Фенитоин.свободный:МассКонц:ТчкВрм:Сыв/​Плаз:Колич:Фенитоин.свободный:МассКонц:ТчкВрм:Сыв/​Плаз:Колич:
  Spanish (ARGENTINA)  (From: Conceptum Medical Terminology Center)
 
  fenitoína.libre:concentración de masa:punto en el tiempo:suero/​plasma:cuantitativo:fenitoína.libre:concentración de masa:punto en el tiempo:suero/​plasma:cuantitativo:
  Spanish (SPAIN)  (From: Regenstrief-generated full translation based on part translation provided by the Clinical Laboratory Committee of SERVICIO EXTREMEÑO DE SALUD, with the support of BITAC MAP.)
 
  Fenitoína libre:Concentración de masa:Punto temporal:Suero o Plasma:Qn:Fenitoína libre:Concentración de masa:Punto temporal:Suero o Plasma:Qn:
  Turkish (TURKEY)  (From: Regenstrief-generated full translation based on part translation provided by LOINC Turkish Translation Group and the Turkish Ministry of Health)
 
  Fenitoin.serb:KütlKons:Zmlı:Ser/​Plaz:Kant:Fenitoin.serb:KütlKons:Zmlı:Ser/​Plaz:Kant:

RELATED NAMES
  DI-HYDAN Mass concentration Quantitative
  Dilantin Non-protein bound Random
  Dilj Phenhydan SerP
  Diphenylhydantoin Phenytoin Free SerPl
  DPH PHYT SerPlas
  DRUG/TOXICOLOGY Pl Serum
  Drugs Plasma Serum or plasma
  Epanutin Plsm Sinergina
  Fenantoin Point in time SR
  FR QNT Zentropil
  Lehydan Quan  
  Level Quant  

EXAMPLE UNITS
  Unit  Source Type
  mcg/mL  REGENSTRIEF 
  ug/mL  EXAMPLE UCUM UNITS 

UNITS (INTERNAL DETAILS)
  Source Type:  REGENSTRIEF 
  Unit:  mcg/mL 
  Source Type:  EXAMPLE UCUM UNITS 
  Unit:  ug/mL 

CHANGE HISTORY
  Change Type: MIN

INTERNAL FIELDS
  Detail Page Created On: 6/26/2019 5:55:20 PM
  Attachment Units Required: Y
  Long Common Name: Phenytoin Free [Mass/volume] in Serum or Plasma
  Shortname: Phenytoin Free SerPl-mCnc
  Fully Specified Name: Phenytoin.free: MCnc: Pt: Ser/Plas: Qn:
     
  Component Word Count: 2
  ID: 32498
  Status (Raw): ACTIVE