LOINC
Version 2.72

31030-0Testosterone/Epitestosterone [Mass Ratio] in UrineActive

Part Descriptions

LP14045-6   Testosterone
Testosterone is an androgenic steroid and is the primary male sex hormone. Approximately half of circulating testosterone is tightly bound to a protein called sex hormone binding globulin (SHBG) and is biologically inactive. Another fraction is weakly bound to other proteins, such as albumin, and the remainder is unbound, or "free". Weakly bound and free testosterone together represent bioavailable testosterone. Both total and free testosterone levels decrease with age. Low testosterone is associated with many other conditions, including osteoporosis, Alzheimer's disease, obesity, diabetes and ischemic heart disease. [PMID:18488876] Source: Regenstrief LOINC, PMID: 18488876

LP14045-6   Testosterone
A potent androgenic steroid and major product secreted by the Leydig cells of the testis. Its production is stimulated by luteinizing hormone from the pituitary gland. In turn, testosterone exerts feedback control of the pituitary LH and FSH secretion. Depending on the tissues, testosterone can be further converted to dihydrotestosterone or estradiol. Source: National Library of Medicine, MeSH 2006

LP32047-0   Epitestosterone
Epitestosterone is a natural steroid, an inactive epimer of the hormone testosterone. Epitestosterone is believed to form in a similar way to testosterone; a 1993 study found that around 50% of epitestosterone production in human males can be ascribed to the testis , although the exact pathway of its formation is still the subject of research. It has been shown to accumulate in mammary cyst fluid and in the prostate. Epitestosterone levels are typically highest in young males; however, by adulthood, most healthy males exhibit a testosterone to epitestosterone ratio (TE ratio) of about 1:1. Epistestosterone and testosterone:It has been shown that exogenous administration of testosterone does not affect levels of epitestosterone in the body. As a result, tests to determine the ratio of testosterone to epitestosterone in urine are used to find athletes who are doping. 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, Epitestosterone (Wikipedia)

Fully-Specified Name

Component
Testosterone/Epitestosterone
Property
MRto
Time
Pt
System
Urine
Scale
Qn
Method

Additional Names

Short Name
Testost/Epitestost Ur
Display Name
Testosterone/Epitestosterone (U) [Mass ratio]
Consumer Name Alpha
Testosterone/Epitestosterone, Urine

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 2.04
Last Updated
Version 2.42
Order vs. Observation
Both

Language Variants Get Info

zh-CNChinese (China)
睾酮/表睾酮:质量比率:时间点:尿液:定量型:
nl-NLDutch (Netherlands)
testosteron/epitestosteron:massaverhouding:moment:urine:kwantitatief:
et-EEEstonian (Estonia)
Testosteroon/epitestosteroon:MRto:Pt:U:Qn:
fr-FRFrench (France)
Testostérone/épitestostérone:Masse ratio:Ponctuel:Urine:Numérique:
it-ITItalian (Italy)
Testosterone/Epitestosterone:MRto:Pt:Urine:Qn:
ko-KRKorean (Korea, Republic of)
남성호르몬/에피테스토스테론:질량농도비:검사시점:뇨:정량:
pt-BRPortuguese (Brazil)
Testosterona/Epitestosterona:MCrto:Pt:Urina:Qn:
ru-RURussian (Russian Federation)
Тестостерон/Эпитестостерон:МассОтн:ТчкВрм:Моча:Колич:
es-ARSpanish (Argentina)
testosterona/epitestosterona:relación de concentración de masa:punto en el tiempo:orina:cuantitativo:
es-MXSpanish (Mexico)
Testosterona / Epitestosterona:Relación de masa:Punto temporal:Orina:Cuantitativo:
es-ESSpanish (Spain)
Testosterona/Epitestosterona:Relacion de Masa:Punto temporal:Orina:Qn:
tr-TRTurkish (Turkey)
Testosteron/Epitestosteron:KütlOr:Zmlı:İdrar:Kant:

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=31030-0