Version 2.78

Part Description

LP417252-6   24r-Hydroxycalcidiol+24r-Hydroxyercalcidiol
24,25-dihydroxyvitamin D (24,25 DHD), also known as 24r-Hydroxycalcidiol, is an INactive metabolite produced by alternative hydroxylation of 25 hydroxyvitamin D (25HDN) by the CYP24A1 enzyme. The hydroxylation by CYP24A1 competes with hydroxylation to active form 1,25-dihydroxyvitamin D (1,25 DHD) by the CYP27B1 enzyme, and is an important process that prevents overproduction of 1,25 DHD and resulting vitamin D toxicity. Testing for an elevated ratio of 25HDN to 24,25 DHD can be used to reveal the likely presence of mutations in the CYP24A1 gene PMID: 22648296. Source: Regenstrief LOINC

Fully-Specified Name

Component
24r-Hydroxycalcidiol+24r-Hydroxyercalcidiol
Property
MCnc
Time
Pt
System
Ser/Plas
Scale
Qn
Method

Additional Names

Short Name
24,25(OH)2 VitD SerPl-mCnc
Display Name
24,25-dihydroxyvitamin D3+24,25-dihydroxyvitamin D2 [Mass/Vol]
Consumer Name Alpha Get Info
24,25-dihydroxyvitamin D3+24,25-dihydroxyvitamin D2, Blood

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 2.68
Last Updated
Version 2.68
Order vs. Observation
Both

Member of these Panels

LOINC Long Common Name
94674-9 25-Hydroxyvitamin D3+25-Hydroxyvitamin D2/24,25-dihydroxyvitamin D3+24,25-dihydroxyvitamin D2 ratio panel in Serum or Plasma

Language Variants Get Info

Tag Language Translation
es-ES Spanish (Spain) 24,25-dihidroxivitamina D3 + 24,25-dihidroxivitamina D2:Concentración de masa:Punto temporal:Suero o Plasma:Qn:
Synonyms: Cuantitativo
es-MX Spanish (Mexico) 24r-Hydroxycalcidiol + 24r-Hydroxyercalcidiol:Concentración de masa:Punto temporal:Suero o Plasma:Cuantitativo:
fr-FR French (France) 24r-hydroxycholécalciférol+24r-hydroxyergocalciférol:Masse/Volume:Ponctuel:Sérum/Plasma:Numérique:
it-IT Italian (Italy) 24r-Idrossicalcidiolo+24r-Idrossicalcidiolo:MCnc:Pt:Siero/Plasma:Qn:
Synonyms: 24,25-Diidrossivitamina D3+24,25-diidrossivitamina D2 Chimica Concentrazione di Massa Plasma Punto nel tempo (episodio) Siero Siero o Plasma
nl-NL Dutch (Netherlands) 24,25-dihydroxyvitamine D3 + 24,25-dihydroxyvitamine D2:massa/volume:moment:serum of plasma:kwantitatief:
Synonyms: calcidiol; vitamine D3 vitamine D3 + D2
zh-CN Chinese (China) 24r-羟基钙二醇+24r,25-羟基钙化醇:质量浓度:时间点:血清/血浆:定量型:
Synonyms: 24(R),25-二羟基维生素 D;24(R),25-二羟基胆维丁;24(R),25-二羟基胆钙化甾醇;24(R),25-二羟基胆钙化醇;24(R),25-二羟基胆骨化醇;24,25-二羟基维生素 D;24,25-二羟基胆维丁;24,25-二羟基胆钙化甾醇;24,25-二羟基胆钙化醇;24,25-二羟基胆骨化醇;24R-OH-钙二醇;维生素 D3 OH-钙二醇 化学;化学检验项目;化学检验项目类;化学类;化学试验;非刺激耐受型化学检验项目;非刺激耐受型化学检验项目类;非刺激耐受型化学试验;非刺激耐受型化学试验类 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 时刻;随机;随意;瞬间 水平;浓度;质量浓度(单位体积) 血清或血浆

Example Units

Unit Source
ng/mL Example UCUM Units

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=94672-3