94672-3

24,25-dihydroxyvitamin D3+24,25-dihydroxyvitamin D2 [Mass/volume] in Serum or Plasma

Active

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

LOINC Names Get Info

Fully-Specified Name: 24r-Hydroxycalcidiol+24r-Hydroxyercalcidiol:MCnc:Pt:Ser/Plas:Qn:
Long Common Name: 24,25-dihydroxyvitamin D3+24,25-dihydroxyvitamin D2 [Mass/volume] in Serum or Plasma
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

Part Model Get Info

Component
24r-Hydroxycalcidiol+24r-Hydroxyercalcidiol
LP417252-6
- Analyte
  24r-Hydroxycalcidiol+24r-Hydroxyercalcidiol
  LP417252-6
  - Component Numerator
    24r-Hydroxycalcidiol+24r-Hydroxyercalcidiol
    LP417252-6
    - Component Numerator Core
      24r-Hydroxycalcidiol+24r-Hydroxyercalcidiol
      LP417252-6
    - Component Numerator Core Suffix
      NULL
  - Component Denominator
    NULL
    - Component Denominator Core
      NULL
    - Component Denominator Core Suffix
      NULL
- Challenge
  NULL
- Adjustment
  NULL
- Count
  NULL
Property
MCnc
LP6827-2
Time
Pt
LP6960-1
- Time Core
  Pt
  LP6960-1
- Time Modifier
  NULL
System
Ser/Plas
LP7576-4
- System Core
  Ser/Plas
  LP7576-4
- Super System
  NULL
Scale
Qn
LP7753-9
Method
NULL

Basic Attributes

Class: CHEM
Type: Laboratory
First Released: Version 2.68
Last Updated: Version 2.68 (ADD)
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

Member of these Groups Get Info

LOINC Group	Group Name
LG51734-8	24r-Hydroxycalcidiol+24r-Hydroxyercalcidiol\|Pt\|Ser/Plas

Language Variants Get Info

Tag	Language	Translation
cs-CZ	Czech (Czechia)	24,25-dihydroxycholekalciferol+24,25-dihydroxyergoekalciferol:Hmotnostní koncentrace:Časový bod:Sérum/plazma:Kvantitativní:
el-GR	Greek (Greece)	24r-υδροξυκαλσιδιόλη+24r-υδροξυερκαλσιδιόλη:MCnc:Pt:Ορός/Πλάσμα:Qn: Synonyms: 24r-υδροξυκαλσιδιόλη 24r-υδροξυκαλσιδιόλη+24r-υδροξυερκαλσιδιόλη CHEM MCnc Pt Qn Ορός Ορός/Πλάσμα Πλάσμα Υδροξυκαλσιδιόλη
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,24,25-Diidrossivitamina D3+24,25-diidrossivitamina D2:MCnc:Pt:Siero/Plasma:Qn: Synonyms: 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
pl-PL	Polish (Poland)	24r-hydroksykalcydiol+24r-hydroksyerkalcydiol:stężenie masowe:punkt w czasie:surowica lub osocze:ilościowy: Synonyms: 24,25-dihydroksywitamina D3 24,25-dihydroksywitamina D3 i 24,25-dihydroksywitamina 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

LOINC Copyright

Copyright © Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.