12273-9

Xanthochromia [Presence] of Body fluid Qualitative

Active

Part Descriptions

LP18043-7   Xanthochromia
Xanthochromia refers to the yellowish appearance of cerebrospinal fluid in certain medical conditions, especially subarachnoid hemorrhage, when red blood cells (RBC) enter the CSF during bleeding. RBCs are eventually destroyed, releasing the oxygen-carrying molecule heme, which in turn is degraded to yield bilirubin, a yellow-green pigment. Heme that enters the CSF for different reasons (for example when a small blood vessel is damaged during a lumbar puncture), has no time to be digested and bilirubin is not generated. Many laboratories rely on the color of the fluid alone when testing for xanthochromia. Recent guidelines, however, suggest that spectrophotometry should be performed since bilirubin absorbs light of wavelengths between 450-460 nm. Two related substances, oxyhemoglobin and methemoglobin (410-418 nm and 403-410 nm absorption ranges, respectively) that are also released when heme is metabolized may be detected during this process. There are other causes for xanthochromia. 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 , Wikipedia

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 In contrast to "Body fld", the System "Asp" in LOINC represents the fluid withdrawn during an aspiration procedure from an abnormal collection of fluid, such as from an abscess or cyst.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

Xanthochromia

Property

PrThr

Time

Pt

System

Body fld

Scale

Ord

Method

Additional Names

Long Common Name

Xanthochromia [Presence] of Body fluid Qualitative

Short Name

Xanthochromia Fld Ql

Display Name

Xanthochromia Ql (Body fld)

Consumer Name Alpha Get Info

Xanthochromia, Body fluid

Basic Attributes

Class

SPEC

Type

Laboratory

First Released

Version 1.0j-a

Last Updated

Version 2.73 (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

Observation

Common Test Rank Get Info

10406

Language Variants Get Info

Related Names

• B/F
• BF
• bod
• Bodies
• Body fluid
• Body fluid, unsp
• Fl
• Fld
• FLU
• Fluid
• Ordinal
• Point in time
• PR
• QL
• Qual
• Qualitative
• Random
• Screen
• SPEC
• Xanthchromia
• Xanthochromic

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

Requests to this service require a free LOINC username and password. Below is a sample of the possible capabilities. See the LOINC Terminology Service documentation for more information.

CodeSystem lookup

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=12273-9

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.