34240-2

Androstenedione/Creatinine [Molar ratio] in Urine

Active

Part Descriptions

LP14493-8   Androstenedione
Androstenedione (also known as 4-androstenedione) is a 19-carbon steroid hormone produced in the adrenal glands and the gonads as an intermediate step in the biochemical pathway that produces the androgen testosterone and the estrogens estrone and estradiol. It is the common precursor of male and female sex hormones. Some androstenedione is also secreted into the plasma, and may be converted in peripheral tissues to testosterone and estrogens. Androstenedione originates either from the conversion of dehydroepiandrosterone or from 17-hydroxyprogesterone. It is further converted to either testosterone or estrone. The production of adrenal androstenedione is governed by ACTH, while production of gonadal androstenedione is controled by gonadotropins. In premenopausal women the adrenal glands and ovaries each produce about half of the total androstendione (about 3 mgday). 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, Androstenedione (Wikipedia)

LP14493-8   Androstenedione
Testing for androstenedione is used to diagnose viralizing syndromes including congenital adrenal hyperplasia, female virilization, hirsutism, polycystic ovarian disease, Stein-Levethal syndrome. and to detect abuse of anabolic steroids. It is also a drug- an anabolic steroid- used to enhance atheletic performance, but banned as an OTC drug by the FDA in 2004. 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

Androstenedione/Creatinine

Property

SRto

Time

Pt

System

Urine

Scale

Qn

Method

Additional Names

Short Name

Androst/Creat Ur-sRto

Display Name

Androstenedione/Creatinine (U) [Molar ratio]

Consumer Name Alpha Get Info

Androstenedione/Creatinine, Urine

Basic Attributes

Class

CHEM

Type

Laboratory

First Released

Version 2.10

Last Updated

Version 2.42

Order vs. Observation

Both

Language Variants Get Info

Related Names

• Chemistry
• CR
• Crea
• Creat
• gamma-4-Androstenedione
• Point in time
• 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=34240-2

LOINC Copyright

Copyright © 2024 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2024, 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.