25551-3

Urobilinogen [Presence] in Body fluid

Active

Part Descriptions

LP15942-3   Urobilinogen
Urobilinogen is a colorless tetrapyrrol that is formed from the reduction of bilirubin by intestinal bacteria. Roughly 20% of the urobilinogen is reabsorbed, returns to the liver via the portal vein, and is excreted by the kidneys in the form of urobilin. The remainder is excreted in the stool. The three mechanisms that alter bilirubin metabolism and can increase or decrease urobilinogen concentration are the following: 1) pre-hepatic overproduction of heme due to diseases such as sickle cell anemia, hemolytic anemia, transfusion reactions, thalassemia, and pernicious anemia, which leads to an increased production of bilirubin and later, urobilinogen; 2) hepatocellular disorders in which the hepatocytes' ability to take up bilirubin, conjugated to glucuronic acid and excreted into the bile duct is impaired which causes a decreased urobilinogen concentration; and 3) post-hepatic obstruction of the bile duct and the biliary system so that conjugated bilirubin is unable to enter the intestines and no urobilinogen is produced.(Fundamental of Urine & Body Fluid Analysis, Third,Nancy A. Brunzel, MS, MLS(ASCP)CM,Elsevier, St Louis, MO ©2013) Source: Regenstrief LOINC

LP7238-1   Body fld
The LOINC "Body fld" System represents body fluids other than serum, plasma, blood, urine, and cerebrospinal fluid. When a LOINC term with the System "Body fld" is used, the specific specimen source or body fluid type should be reported elsewhere with the result. Where more specific terms for pleural, peritoneal, synovial fluid, etc. exist, we encourage you to use the more specific terms. In contrast to "Body fld", the System "Asp" in LOINC represents the fluid withdrawn during an aspiration procedure from an abnormal collection of fluid, such as from an abscess or cyst. "Asp" is used for abnormal fluid collections that are aspirated, while "Body fld" is used for named body fluids, such as synovial fluid or peritoneal fluid, that are not inherently pathologic. Source: Regenstrief LOINC

Fully-Specified Name

Component

Urobilinogen

Property

PrThr

Time

Pt

System

Body fld

Scale

Ord

Method

Additional Names

Long Common Name

Urobilinogen [Presence] in Body fluid

Short Name

Urobilinogen Fld Ql

Display Name

Urobilinogen Ql (Body fld)

Consumer Name Alpha Get Info

Urobilinogen, Body fluid

Basic Attributes

Class

CHEM

Type

Laboratory

First Released

Version 2.00

Last Updated

Version 2.56 (MIN)

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

Both

Language Variants Get Info

Related Names

• B/F
• BF
• bod
• Bodies
• Body fluid
• Body fluid, unsp
• Chemistry
• Fl
• Fld
• FLU
• Fluid
• Ordinal
• Point in time
• PR
• QL
• Qual
• Qualitative
• Random
• Screen
• UBG
• Urobili
• Urobilngn

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

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CodeSystem lookup

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=25551-3

LOINC Copyright

Copyright © 2025 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 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.