LOINC
Version 2.71

73570-4Testosterone/Epitestosterone [Interpretation] in Urine QualitativeActive

Term Description

The interpretation (this code) for the ratio of testosterone to epitestosterone [LOINC:31030-0] should ideally be reported in the interpretation field of a messaging system, for example HL7 OBX-8.
Source: Regenstrief LOINC

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
Imp
Time
Pt
System
Urine
Scale
Ord
Method

Additional Names

Short Name
Testost/Epitestost Ur-Imp
Display Name
Testosterone/Epitestosterone Ql (U) [Interp]
Consumer Name Alpha
Testosterone/Epitestosterone, Urine

HL7 Attributes

HL7 Field ID
OBX-8

Example Answer List LL2354-0

Source: Regenstrief LOINC

Answer Code Score Answer ID
Normal Copyright http://snomed.info/sct ID:17621005 Normal (qualifier value) LA6626-1
Abnormal Copyright http://snomed.info/sct ID:263654008 Abnormal (qualifier value) LA12748-2

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 2.44
Last Updated
Version 2.44
Order vs. Observation
Observation

Language Variants Get Info

zh-CNChinese (China)
睾酮/表睾酮:印象:时间点:尿液:序数型:
nl-NLDutch (Netherlands)
testosteron/epitestosteron:interpretatie:moment:urine:ordinaal:
fr-FRFrench (France)
Testostérone/épitestostérone:Interprétation:Ponctuel:Urine:Qualitatif:
it-ITItalian (Italy)
Testosterone/Epitestosterone:Imp:Pt:Urine:Ord:
pt-BRPortuguese (Brazil)
Testosterona/Epitestosterona::Pt:Urina:Ord:
ru-RURussian (Russian Federation)
Тестостерон/Эпитестостерон:Впчт:ТчкВрм:Моча:Пор:
es-ESSpanish (Spain)
Testosterona/Epitestosterona:Impresión/interpretación del estudio:Punto temporal:Orina:Ord:
tr-TRTurkish (Turkey)
Testosteron/Epitestosteron:İzlnm:Zmlı:İdrar:Srl:

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=73570-4