Version 2.77

Part Descriptions

LP15151-1   Coproporphyrin
4 carboxyl groups Source: Regenstrief Institute

LP15151-1   Coproporphyrin
Porphyrins build up among patients with hereditary enzyme disorders known as porphyrias. Porphyrias affect the heme biosynthetic pathway and cause increased urine excretion of porphyrinogens, by-products known as porphyrins and porphyrinogen precursors-including delta aminolevulinic acid (ALA) and porphobilinogen (PBG). Coproporphyrin and uroporphyrin excretion in urine is markedly increased during acute attacks of hereditary coproporphyria. Increased uroporphyrinogen, uroporphyrin, and coproporphyrin excretion occurs in porphyria cutanea tarda. Increased coproporphyrin excretion alone lacks specificity and sensitivity for lead testing and is likely to occur secondary to other diseases. Information from LOINC partner 1 and Jacobs and DeMott Laboratory Test Handbook, 5th edition, DS Jacobs, WR DeMott and DK Oxley, 2001. 2007 08 06. Source: Regenstrief Institute

LP15151-1   Coproporphyrin
Part of porphyrin fractionation testing useful in diagnosing porphyrin cutanea tarda, hereditary coproporphyria, and variegate porphyria. Such patients typically will present with profound elevations of porphyrin analytes (e.g. > 5-fold) during acute episodes. Moderate elevations (e.g. < 3-fold) are more often due to medications or environmental factors. Source: Regenstrief LOINC

Fully-Specified Name


Additional Names

Short Name
Copro 24h Ur Ql
Display Name
Coproporphyrin Ql (24H U)
Consumer Name Alpha Get Info
Coproporphyrin, Urine

Example Answer List: LL360-9

Source: Regenstrief Institute
Answer Code Score Answer ID
PositiveCopyright ID:10828004 Positive (qualifier value) LA6576-8
NegativeCopyright ID:260385009 Negative (qualifier value) LA6577-6

Basic Attributes

First Released
Version 1.0k
Last Updated
Version 2.56
Change Reason
The PrThr property is used for LOINC terms whose results are reported using an ordered categorical scale, regardless of whether or not an internal threshold was used to make that determination. This change was approved by the Laboratory LOINC Committee in June 2016.
Order vs. Observation

Member of these Panels

LOINC Long Common Name
43116-3 Porphyrin fractions panel - 24 hour Urine

Member of these Groups Get Info

LOINC Group Group Name
LG34830-6 Coproporphyrin|PrThr|Urine

Language Variants Get Info

Tag Language Translation
es-AR Spanish (Argentina) coproporfirina:concentración arbitraria:24 horas:orina:ordinal:
es-ES Spanish (Spain) Coproporfirina:PrThr:24 horas:Orina:Ord:
es-MX Spanish (Mexico) Coproporfirina:Presencia o umbral:24H:Orina:Ordinal:
et-EE Estonian (Estonia) Koproporfüriin:PrThr:24 tunni:U:Ord:
Synonyms: Järgarvuline Uriin
fr-CA French (Canada) Coproporphyrine:Présence-Seuil:24 h:Urine:Ordinal:
fr-FR French (France) Coproporphyrine:Présence/Seuil:24H:Urine:Qualitatif:
fr-BE French (Belgium) Coproporphyrine:PrThr:24 h:Urine:Ordinal:
it-IT Italian (Italy) Coproporfirina:PrThr:24h:Urine:Ord:
Synonyms: 24 Ore Chimica Presenza o Soglia
ko-KR Korean (Korea, Republic Of) 코프로포르피린:임의농도:24시간:뇨:순위척도:
nl-NL Dutch (Netherlands) coproporfyrine:aanwezigheid:24 uur:urine:ordinaal:
Synonyms: 24U
pt-BR Portuguese (Brazil) Coproporfirina:ACnc:24H:Urina:Ord:
Synonyms: ; Copro; Coproporphyrins; Tetracarboxyporphyrin; Coproporph; Tetracarboxyl porphyrin; Tetracarboxylporphyrin; Tetracarboxylporphyrins; Arbitrary concentration; 1 day; 24 hours; 24HR; Ur; UR; Urn; UA; Ql; Ordinal; QL; Qualitative; Qual; Screen; Chemistry
ru-RU Russian (Russian Federation) Копропорфирин:PrThr:24 часа:Моча:Пор:
Synonyms: Порядковый
tr-TR Turkish (Turkey) Koproporfirin:MevcEşik:24Sa:İdrar:Srl:
Synonyms: Mevcut
zh-CN Chinese (China) 粪卟啉:存在情况或阈值:24小时:尿液:序数型:
Synonyms: 1天;1日;24.0小时;一天;一日;二十四个小时;二十四小时 Copro;Coproporph;四羧基卟啉 依次型;分类顺序型;定性的;序数型(或称等级型);性质上的;有序型;有序性分类应答;有序性分类结果;秩次型;等级型;筛查;顺序型 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 存在情况;存在;存在与否;是否存在;阈值;界值;界限;阀值;临界值;存在情况(存在、存在与否、是否存在)或阈值(界值、界限、阀值、临界值) 尿;小便;下泉

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