9641-2
Catecholamines/Creatinine [Mass Ratio] in Urine
Active
Part Descriptions
LP15090-1 Catecholamines
Catecholamines are chemical compounds derived from the amino acid tyrosine. Some of them are biogenic amines. Catecholamines are water soluble and are 50% bound to plasma proteins, so they circulate in the bloodstream. The most abundant catecholamines are epinephrine (adrenaline), norepinephrine (noradrenaline) and dopamine. They are produced mainly from the adrenal medulla and the postganglionic fibers of the sympathetic nervous system. Epinephrine acts as a neurotransmitter in the central nervous system and as a hormone in the blood circulation. Norepinephrine is primarily a neurotransmitter of the peripheral sympathetic nervous system but is also present in the blood (mostly through spillover from the synapses of the sympathetic system). High catecholamine levels in blood are associated with stress, which can be induced from psychological reactions or environmental stressors such as elevated sound levels or intense light.
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, Catecholamines (Wikipedia)
LP15090-1 Catecholamines
A general class of ortho-dihydroxyphenylalkylamines derived from tyrosine.
Source: National Library of Medicine, MeSH 2006
LP15090-1 Catecholamines
Catecholamines are synthesized in the adrenal medulla, brain, and sympathetic nervous system. Urine catecholamine fractionation is often performed to diagnose catecholamine-secreting neoplasms, of which more than 90% are adrenal pheochromocytomas. Increases in epinephrine and/or norepinephrine are seen with adrenal pheochromocytomas. Normally, catecholamines are taken up by storage particles, excreted into urine, or converted to metabolites(metanephrine, normetanephrine, methoxyhydroxyphenylglycol, vanillylmandelic acid). Information from Jacobs and DeMott Laboratory Test Handbook, 5th edition, DS Jacobs, WR DeMott and DK Oxley, 2001. 2007 08 06.
Source: Regenstrief Institute
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
- Catecholamines/Creatinine
- Property
- MRto
- Time
- Pt
- System
- Urine
- Scale
- Qn
- Method
Additional Names
- Short Name
- Catechols/Creat Ur
- Display Name
- Catecholamines/Creatinine (U) [Mass ratio]
- Consumer Name Alpha Get Info
- Catecholamines/Creatinine, Urine
Basic Attributes
- Class
- CHEM
- Type
- Laboratory
- First Released
- Version 1.0i
- Last Updated
- Version 2.73
- Order vs. Observation
- Both
- Common Test Rank Get Info
- 13060
Member of these Groups Get Info
| LOINC Group | Group Name |
|---|---|
| LG36229-9 | Catecholamines/Creatinine| |
Language Variants Get Info
| Tag | Language | Translation |
|---|---|---|
| es-AR | Spanish (Argentina) | catecolaminas/creatinina: |
| es-ES | Spanish (Spain) | Catecolaminas/Creatinina: Synonyms: Cuantitativo |
| es-MX | Spanish (Mexico) | Catecolaminas / Creatinina: |
| et-EE | Estonian (Estonia) | Katehhoolamiinid/kreatiniin: Synonyms: Juhuslik Kvantitatiivne Uriin |
| fr-CA | French (Canada) | Catécholamines/Créatinine: |
| fr-FR | French (France) | Catécholamines/créatinine: |
| fr-BE | French (Belgium) | Catécholamines/Créatinine: Synonyms: Rapport de masse |
| it-IT | Italian (Italy) | Catecolamine/Creatinina: Synonyms: Chimica Punto nel tempo (episodio) Rapporto di Massa |
| ko-KR | Korean (Korea, Republic Of) | 카테콜라민/크레아티닌: |
| nl-NL | Dutch (Netherlands) | catecholaminen/creatinine: Synonyms: kreatinine |
| pt-BR | Portuguese (Brazil) | Catecolaminas/Creatinina: Synonyms: ; |
| ru-RU | Russian (Russian Federation) | Катехоламины/Креатинин: Synonyms: Количественный Масс отношение Точка во времени; |
| tr-TR | Turkish (Turkey) | Katekolaminler/Kreatinin: |
| zh-CN | Chinese (China) | 儿茶酚胺类/肌酐: Synonyms: CR; |
Example Units
| Unit | Source |
|---|---|
| mcg/mg cr | REGENSTRIEF |
| ug/mg{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=9641-2
LOINC Copyright
Copyright © 2024 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright