77184-0
Niobium/Creatinine [Molar ratio] in Urine
Active
Term Description
Testing is done as an assessment of toxic metal retention to address public health concerns of niobium leaching into drinking water. Variability in urine volume can drastically affect the concentration of elements and to compensate for urine dilution variation, elements are sometimes expressed per unit creatinine.
Part Descriptions
LP188755-5 Niobium
Niobium (formerly columbium) a chemical element symbol Nb (formerly Cb) and atomic number 41, is a soft, grey, ductile transition metal found in the pyrochlore mineral. The temperature stability of niobium-containing super alloys is important for its use in jet and rocket engines. Niobium alloyed with tin and titanium, are widely used in the superconducting magnets of MRI scanners and, alloyed with titanium, in medical implants. Other applications of niobium include its use in welding, nuclear industries, electronics, optics, numismatics and jewelry. Niobium has no known biological role. While niobium dust is an eye and skin irritant and a potential fire hazard, elemental niobium on a larger scale is physiologically inert (and thus hypoallergenic) and harmless. Niobium-containing compounds are rarely encountered by most people, but some are toxic. There are increasing concerns regarding its public health risks in terms of heavy metal toxicity. The health risks to humans have been suggested to be similar to heavy metals if niobium leaches into our drinking water. [Wikipedia: Niobium]
Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See http://creativecommons.org/licenses/by-sa/3.0/ for details.
Source: Wikipedia
, Niobium
LP32035-5 Creatinine
Creatinine or creatine anhydride, is a breakdown product of creatine phosphate in muscle. The loss of water molecule from creatine results in the formation of creatinine. It is transferred to the kidneys by blood plasma, whereupon it is eliminated by glomular filtration and partial tubular excretion. Creatinine is usually produced at a fairly constant rate and measuring its serum level is a simple test. A rise in blood creatinine levels is observed only with marked damage to functioning nephrons; therefore this test is not suitable for detecting early kidney disease. Creatine and creatinine are metabolized in the kidneys, muscle, liver and pancreas.
Copyright Copyright ©2005-2009 Genome Alberta (Reference to original publication: Wishart DS, Knox C, Guo AC, et al. HMDB: a knowledgebase for the human metabolome. Nucleic Acids Res. 2009 37(Database issue):D603-610.)
Source: Human Metabolome Database
, Creatinine
Fully-Specified Name
- Component
- Niobium/Creatinine
- Property
- SRto
- Time
- Pt
- System
- Urine
- Scale
- Qn
- Method
Additional Names
- Long Common Name
- Niobium/Creatinine [Molar ratio] in Urine
- Short Name
- Nb/Creat Ur-sRto
- Display Name
- Niobium/Creatinine (U) [Molar ratio]
- Consumer Name Alpha Get Info
- Niobium/Creatinine, Urine
Basic Attributes
- Class
- DRUG/TOX
- Type
- Laboratory
- First Released
- Version 2.52
- Last Updated
- Version 2.52 (MIN)
- Order vs. Observation
- Both
Language Variants Get Info
| Tag | Language | Translation |
|---|---|---|
| el-GR | Greek (Greece) | Νιόβιο/Κρεατινίνη: Synonyms: SRto Κρεατινίνη Νιόβιο |
| es-ES | Spanish (Spain) | Niobio/Creatinina: Synonyms: Cuantitativo |
| es-MX | Spanish (Mexico) | Niobio / Creatinina: |
| fr-CA | French (Canada) | Niobium/Créatinine: |
| fr-FR | French (France) | Niobium/créatinine: |
| it-IT | Italian (Italy) | Niobio/Creatinina: Synonyms: Livelli farmacologici e tossicologia Punto nel tempo (episodio) Rapporto di sostanza |
| nl-NL | Dutch (Netherlands) | niobium/creatinine: Synonyms: kreatinine |
| tr-TR | Turkish (Turkey) | Niobiyum/Kreatinin: Synonyms: SubsOranı |
| zh-CN | Chinese (China) | 铌/肌酐: Synonyms: CR; |
Example Units
| Unit | Source |
|---|---|
| pmol/mol{creat} | Example UCUM Units |
LOINC Terminology Service (API) using HL7® FHIR® Get Info
Requests to this service require a free LOINC username and password. Below is a sample of the possible capabilities. See the LOINC Terminology Service documentation for more information.
- CodeSystem lookup
- https:
//fhir.loinc.org/CodeSystem/$lookup?system=http: //loinc.org&code=77184-0
LOINC Copyright
Copyright © 2025 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://