Version 2.78

Part Descriptions

LP14695-8   Somatotropin
Somatotropin (growth hormone) is essential for normal growth and development in children and helps regulate metabolism in both children and adults. The pituitary gland produces and releases GH into the blood in pulses throughout the day.

Because growth hormone is released in pulses, a single measurement of the blood level is not normally clinically useful. Therefore, testing for the suppression or stimulation of growth hormone release from the pituitary is usually done.

GH stimulation (challenge) tests help to diagnose GH deficiency and hypopituitarism. For a stimulation test, a sample of blood is drawn after 10-12 hours of fasting. Then, under close medical supervision, a person is given an intravenous solution of a substance that normally stimulates the release of GH from the pituitary. Blood samples are then drawn at timed intervals and GH levels are tested in each to see if the pituitary gland was stimulated to produce the expected levels of GH. The most commonly used challenge is arginine, but others include clonidine and glucagon. Since exercise normally causes an increase in GH, vigorous exercise may also be used as the stimulant for GH release.

GH suppression tests help to diagnose GH excess. For a suppression test, a sample of blood is drawn after 10-12 hours of fasting. A person is then given a standard glucose solution (usually 100 grams of glucose) to drink. Blood samples are drawn at timed intervals and tested for GH to see if the pituitary gland is sufficiently suppressed by the dose of glucose. Copyright Copyright © 2021 Lab Tests Online. All rights reserved. Source: Lab Tests Online®

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
Somatotropin/Creatinine
Property
Ratio
Time
24H
System
Urine
Scale
Qn
Method

Additional Names

Short Name
GH/Creat 24h Ur-Rto
Display Name
Somatotropin/Creatinine (24H U) [Ratio]
Consumer Name Alpha Get Info
Somatotropin/Creatinine, Urine

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 2.09
Last Updated
Version 2.73
Order vs. Observation
Both
Common Test Rank Get Info
15916

Member of these Groups Get Info

LOINC Group Group Name
LG36051-7 Somatotropin/Creatinine|Ratio|Urine

Language Variants Get Info

Tag Language Translation
de-DE German (Germany) Somatotropin/Creatinin:Verhältnis:24 Stunden:Urin:Quantitativ:
Synonyms: Somatotropes Hormon; humanes Growth Hormon; STH; hGH
es-AR Spanish (Argentina) somatotrofina/creatinina:relación:24 horas:orina:cuantitativo:
es-ES Spanish (Spain) Somatotropina/Creatinina:Fracción:24 horas:Orina:Qn:
Synonyms: Cuantitativo
es-MX Spanish (Mexico) Somatotropina / Creatinina:Proporción:24H:Orina:Cuantitativo:
et-EE Estonian (Estonia) Kasvuhormoon/kreatiniin:Suhe:24 tunni:U:Qn:
Synonyms: Kvantitatiivne Somatotropiin Uriin
fr-CA French (Canada) Hormone de croissance/Créatinine:Ratios:24 h:Urine:Quantitatif:
Synonyms: GH
fr-FR French (France) Somatotropine/créatinine:Ratio:24H:Urine:Numérique:
fr-BE French (Belgium) Hormone de croissance/Créatinine:Ratios:24 h:Urine:Quantitatif:
Synonyms: GH, hGH
it-IT Italian (Italy) Somatotropina/Creatinina:Rapporto:24h:Urine:Qn:
Synonyms: 24 Ore Chimica GH
ko-KR Korean (Korea, Republic Of) 성장호르몬/크레아티닌:비율:24시간:뇨:정량:
nl-NL Dutch (Netherlands) somatotropine/creatinine:verhouding:24 uur:urine:kwantitatief:
Synonyms: 24U kreatinine
pt-BR Portuguese (Brazil) Somatotrofina/Creatinina:Ratio:24H:Urina:Qn:
Synonyms: ; GH; Somatotropic hormone; STH; Growth hormone; Human growth hormone; HGH; Creat; CR; Rto; 1 day; 24 hours; 24HR; Ur; UR; Urn; UA; Quantitative; QNT; Quant; Quan; Chemistry; UCr
ru-RU Russian (Russian Federation) Соматотропин/Креатинин:Отношение:24 часа:Моча:Колич:
Synonyms: Количественный Коэффициент;Соотношение;Пропорция
tr-TR Turkish (Turkey) Somatotropin/Kreatinin:Oran:24Sa:İdrar:Kant:
zh-CN Chinese (China) 生长激素/肌酐:比率:24小时:尿液:定量型:
Synonyms: 1天;1日;24.0小时;一天;一日;二十四个小时;二十四小时 CR;Creat;肌氨酸酐;肌酸内酰胺;肌酸酐 GH;HGH;STH;人生长激素（Human Growth Hormone，HGH）;促生长素;生长激素（Growth Hormone，GH，Somatotropin，Somatotropic hormone）;生长素;躯体刺激素 UCr 化学;化学检验项目;化学检验项目类;化学类;化学试验;非刺激耐受型化学检验项目;非刺激耐受型化学检验项目类;非刺激耐受型化学试验;非刺激耐受型化学试验类 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 尿;小便;下泉 尿液肌酐 尿液肌酸酐 尿肌酸酐 来自于不同体系的两个观察指标之比;比;比值 肌酸内酰胺

Example Units

Unit Source
ng/mol{creat} Example UCUM Units

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=33860-8