57378-2

Porphyrins/Creatinine [Molar ratio] in Urine

Active

Part Descriptions

LP14913-5   Porphyrins
A group of compounds containing the porphin structure, four pyrrole rings connected by methine bridges in a cyclic configuration to which a variety of side chains are attached. The nature of the side chain is indicated by a prefix, as uroporphyrin, hematoporphyrin, etc. The porphyrins, in combination with iron, form the heme component in biologically significant compounds such as hemoglobin and myoglobin. Source: National Library of Medicine, MeSH 2006

LP14913-5   Porphyrins
Porphyrins are created as byproducts of porphyrinogens. Hereditary enzyme disorders leading to the buildup of porphyrins or porphyrinogens cause porphyrias and affect the heme biosynthetic pathway. Most of these disorders are inherited as autosomal dominant disorders. Increased urine porphyrins are seen with congenital erythropoietic porphyria, acute intermittent porphyria, hereditary coproporphyria, variegate porphyria, and porphyria cutanea tarda. Information from LOINC partner 1 and Jacobs and DeMott Laboratory Test Handbook, 5th edition, DS Jacobs, WR DeMott and DK Oxley, 2001. 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

Porphyrins/Creatinine

Property

SRto

Time

Pt

System

Urine

Scale

Qn

Method

Additional Names

Long Common Name

Porphyrins/Creatinine [Molar ratio] in Urine

Short Name

Porphyrins/Creat Ur-sRto

Display Name

Porphyrins/Creatinine (U) [Molar ratio]

Consumer Name Alpha Get Info

Porphyrins/Creatinine, Urine

Basic Attributes

Class

CHEM

Type

Laboratory

First Released

Version 2.29

Last Updated

Version 2.73

Order vs. Observation

Both

Common Test Rank Get Info

17494

Member of these Panels

Language Variants Get Info

Related Names

• Chemistry
• CR
• Crea
• Creat
• Point in time
• Porph
• Porphyrin
• QNT
• Quan
• Quant
• Quantitative
• Random
• Scrto
• Substance concentration ratio
• Substance ratio
• UA
• UCr
• UR
• Urn

Example 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=57378-2

LOINC Copyright

Copyright © 2024 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.