Version 2.80

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

Fully-Specified Name

Component
Codeine.free
Property
PrThr
Time
Pt
System
Ser/Plas
Scale
Ord
Method
Screen

Additional Names

Long Common Name
Codeine Free [Presence] in Serum or Plasma by Screen method
Short Name
Codeine Free SerPl Ql Scn
Display Name
Codeine Free Screen Ql
Consumer Name Alpha Get Info
Free codeine, Blood

Basic Attributes

Class
DRUG/TOX
Type
Laboratory
First Released
Version 2.19
Last Updated
Version 2.56 (MIN)
Change Reason
The Property has been changed from ACnc to reflect new model for ordinal terms; 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

Language Variants Get Info

Tag Language Translation
el-GR Greek (Greece) Κωδεΐνη.ελεύθερη:PrThr:Pt:Ορός/Πλάσμα:Ord:Έλεγχος
Synonyms: PrThr Κωδεΐνη Κωδεΐνη.ελεύθερη
es-ES Spanish (Spain) Codeina libre:PrThr:Punto temporal:Suero o Plasma:Ord:Cribado toxicológico
es-MX Spanish (Mexico) Codeine.libre:Presencia o umbral:Punto temporal:Suero o Plasma:Ordinal:Pantalla de toxicología
fr-CA French (Canada) Codéine.libre:Présence-Seuil:Temps ponctuel:Sérum/Plasma:Ordinal:Dépistage
fr-FR French (France) Codéine libre:Présence/Seuil:Ponctuel:Sérum/Plasma:Qualitatif:Dépistage
fr-BE French (Belgium) Codéine.libre:PrThr:Temps ponctuel:Sérum/Plasma:Ordinal:Dépistage
it-IT Italian (Italy) Codeina.libera:PrThr:Pt:Siero/Plasma:Ord:Screening
Synonyms: Codeina Libera Livelli farmacologici e tossicologia Plasma Presenza o Soglia Punto nel tempo (episodio) Screening tossicologico Siero Siero o Plasma
nl-NL Dutch (Netherlands) codeïne.vrij:aanwezigheid:moment:serum of plasma:ordinaal:screening
pt-BR Portuguese (Brazil) Codeína.livre:ACnc:Pt:Sor/Plas:Ord:Triagem
Synonyms: c300; Methylmorphine; Morphine methyl ether; Arbitrary concentration; Point in time; Random; SerPl; SerPlas; SerP; Serum; SR; Plasma; Pl; Plsm; Ql; Ordinal; QL; Qualitative; Qual; Scn; Scr; Scrn; Drugs; FR; Non-protein bound; DRUG/TOXICOLOGY; DRUG/TOXICOLOGY
ru-RU Russian (Russian Federation) Кодеин.свободный:PrThr:ТчкВрм:Сыв/Плаз:Пор:Скрининг
Synonyms: Плазма Порядковый Сыворотка Сыворотка или Плазма Токсикологический скрининг Точка во времени;Момент
tr-TR Turkish (Turkey) Kodein.serb:MevcEşik:Zmlı:Ser/Plaz:Srl:Tarama
Synonyms: Mevcut
zh-CN Chinese (China) 可待因.游离型:存在情况或阈值:时间点:血清/血浆:序数型:毒理学筛查试验
Synonyms: C18H21NO3;吗啡甲醚;尼柯康;甲基吗啡 依次型;分类顺序型;定性的;序数型（或称等级型）;性质上的;有序型;有序性分类应答;有序性分类结果;秩次型;等级型;筛查;顺序型 可待因.游离;游离可待因;游离型可待因 存在情况;存在;存在与否;是否存在;阈值;界值;界限;阀值;临界值;存在情况（存在、存在与否、是否存在）或阈值（界值、界限、阀值、临界值） 时刻;随机;随意;瞬间 毒品 毒品类 游离 筛查 筛查方法;筛查法;筛查试验 筛查试验 筛选试验 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 过筛 过筛试验 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=46262-2