10548-6Phenytoin Free/Phenytoin.total in Serum or PlasmaActive
Part Descriptions
LP14731-1 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.
Source: Regenstrief Institute
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
Fully-Specified Name
- Component
- Phenytoin.free/Phenytoin.total
- Property
- MFr
- Time
- Pt
- System
- Ser/Plas
- Scale
- Qn
- Method
Additional Names
- Short Name
- Phenytoin Free MFr SerPl
- Display Name
- Phenytoin Free/Total phenytoin [Mass fraction]
- Consumer Name Alpha
- Free phenytoin/Phenytoin.total, Blood
Basic Attributes
- Class
- DRUG/TOX
- Type
- Laboratory
- First Released
- Version 1.0i
- Last Updated
- Version 2.70
- Order vs. Observation
- Observation
Language Variants Get Info
- zh-CNChinese (China)
- 苯妥英.游离型/苯妥英.总计:
质量分数: 时间点: 血清/血浆: 定量型: - nl-NLDutch (Netherlands)
- fenytoïne.vrij/fenytoïne.totaal:
massafractie: moment: serum of plasma: kwantitatief: - et-EEEstonian (Estonia)
- Fenütoiin.vaba/fenütoiin.üld:
MFr: Pt: S/P: Qn: - fr-BEFrench (Belgium)
- Phénytoïne.libre/Phénytoïne.totale:
Fraction de masse: Temps ponctuel: Sérum/Plasma: Quantitatif: - fr-CAFrench (Canada)
- Phénytoïne.libre/Phénytoïne.totale:
Fraction de masse: Temps ponctuel: Sérum/Plasma: Quantitatif: - fr-FRFrench (France)
- Diphénylhydantoïne libre/diphénylhydantoïne totale:
Fraction massique: Ponctuel: Sérum/Plasma: Numérique: - it-ITItalian (Italy)
- Fenitoina.libera/Fenitoina.totale:
MFr: Pt: Siero/Plasma: Qn: - ko-KRKorean (Korea, Republic of)
- 유리페니토인/총페니토인:
질량분획: 검사시점: 혈청/혈장: 정량: - pt-BRPortuguese (Brazil)
- Fenitoína.livre/Fenitoína.total:
MFr: Pt: Sor/Plas: Qn: - ru-RURussian (Russian Federation)
- Фенитоин.свободный/Фенитоин.общий:
МассДол: ТчкВрм: Сыв/Плаз: Колич: - es-ARSpanish (Argentina)
- fenitoína.libre/fenitoína.total:
fracción de masa: punto en el tiempo: suero/plasma: cuantitativo: - es-MXSpanish (Mexico)
- Phenytoin.libre/Phenytoin.total:
Fracción de masa: Punto temporal: Suero o Plasma: Cuantitativo: - es-ESSpanish (Spain)
- Fenitoína libre/Fenitoína.total:
Fracción de masa: Punto temporal: Suero o Plasma: Qn: - tr-TRTurkish (Turkey)
- Fenitoin.serb/Fenitoin.total:
KütlFr: Zmlı: Ser/Plaz: Kant:
Example Units
| Unit | Source |
|---|---|
| % | Example UCUM Units |
| % | REGENSTRIEF |
LOINC FHIR® API Example - CodeSystem Request Get Info
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=10548-6
LOINC Copyright
Copyright © 2022 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright