LOINC
Version 2.73

73939-1HYDROcodone Free [Mass/volume] in BloodActive

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
HYDROcodone.free
Property
MCnc
Time
Pt
System
Bld
Scale
Qn
Method

Additional Names

Short Name
HYDROcodone Free Bld-mCnc
Display Name
HYDROcodone Free (Bld) [Mass/Vol]
Consumer Name Alpha
Free HYDROcodone, Blood

Basic Attributes

Class
DRUG/TOX
Type
Laboratory
First Released
Version 2.44
Last Updated
Version 2.73
Order vs. Observation
Both
Common US Lab Results Rank
19666

Member of these Groups

LG4732-6 Hydrocodone.free|MCnc|Pt|ANYBldSerPl

Language Variants Get Info

zh-CNChinese (China)
氢可酮.游离型:质量浓度:时间点:全血:定量型:
nl-NLDutch (Netherlands)
hydrocodon.vrij:massa/volume:moment:bloed:kwantitatief:
et-EEEstonian (Estonia)
Hüdrokodoon.vaba:MCnc:Pt:B:Qn:
fr-BEFrench (Belgium)
Hydrocodone.libre:Concentration de masse:Temps ponctuel:Sang:Quantitatif:
fr-CAFrench (Canada)
Hydrocodone.libre:Concentration de masse:Temps ponctuel:Sang:Quantitatif:
fr-FRFrench (France)
Hydrocodone libre:Masse/Volume:Ponctuel:Sang:Numérique:
it-ITItalian (Italy)
Idrocodone.libero:MCnc:Pt:Sangue:Qn:
pt-BRPortuguese (Brazil)
Hidrocodona.livre::Pt:SgTotal:Qn:
ru-RURussian (Russian Federation)
Гидрокодон.свободный:МассКонц:ТчкВрм:Кр:Колич:
es-MXSpanish (Mexico)
HYDROcodone.libre:Concentración de masa:Punto temporal:Sangre:Cuantitativo:
es-ESSpanish (Spain)
Hidrocodona libre:Concentración de masa:Punto temporal:Sangre:Qn:
tr-TRTurkish (Turkey)
Hidrokodon.serb:KütlKons:Zmlı:Kan:Kant:

Example Units

Unit Source
ng/mL Example UCUM Units

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=73939-1