13330-6
Barr bodies [Presence] in Cervix by Light microscopy
Active
Part Description
LP18339-9 Barr bodies
A Barr body is the inactive X chromosome in a female somatic cell, or the inactive Z in a male, rendered inactive in a process called lyonization, in those species (including humans) in which sex is determined by the presence of the Y or W chromosome rather than the diploidy of the X or Z. The Lyon hypothesis states that in cells with multiple X chromosomes, all but one are inactivated during mammalian embryogenesis. This happens early in embryonic development at random in mammals, except in marsupials and in some extra-embryonic tissues of some placental mammals, in which the father's X chromosome is always deactivated. Barr bodies are named after their discoverer, Murray Barr. In men and women with more than one X chromosome, the number of Barr bodies visible at interphase is always one less than the total number of X chromosomes. For example, men with a 47,XXY karyotype have a single Barr body, whereas women with a 47,XXX karyotype have two Barr bodies. Barr bodies can be seen on the nucleus of neutrophils.
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Source: Wikipedia
, Wikipedia
Fully-Specified Name
- Component
- Barr bodies
- Property
- PrThr
- Time
- Pt
- System
- Cvx
- Scale
- Ord
- Method
- Microscopy.light
Additional Names
- Long Common Name
- Barr bodies [Presence] in Cervix by Light microscopy
- Short Name
- Barr Bod Cvx Ql Micro
- Display Name
- Barr bodies LM Ql (Cvx)
- Consumer Name Alpha Get Info
- Barr bodies, Cervix
Basic Attributes
- Class
- HEM/BC
- Type
- Laboratory
- First Released
- Version 1.0j-a
- Last Updated
- Version 2.58 (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
Language Variants Get Info
| Tag | Language | Translation |
|---|---|---|
| el-GR | Greek (Greece) | Σωμάτια Barr: Synonyms: PrThr |
| es-AR | Spanish (Argentina) | cuerpos de Barr: |
| es-ES | Spanish (Spain) | Cuerpos de Barr: |
| es-MX | Spanish (Mexico) | Cuerpos de barr: |
| fr-CA | French (Canada) | Corps de Barr: |
| fr-FR | French (France) | Corps de Barr: |
| fr-BE | French (Belgium) | Corps de Barr: |
| it-IT | Italian (Italy) | Barr, corpi: Synonyms: Cervice uterina Corpi di Barr Ematologia (coagulazione) conta differenziale Microscopia ottica Presenza o Soglia Punto nel tempo (episodio) |
| ko-KR | Korean (Korea, Republic Of) | 성염색질: |
| nl-NL | Dutch (Netherlands) | lichaampjes van Barr: Synonyms: baarmoederhals lichtmicroscopie |
| pt-BR | Portuguese (Brazil) | Corpúsculos de Barr: Synonyms: ; |
| ru-RU | Russian (Russian Federation) | Барра тельце: Synonyms: Порядковый Тельце Барра Точка во времени; |
| tr-TR | Turkish (Turkey) | Barr cisimleri: Synonyms: Mevcut |
| zh-CN | Chinese (China) | Barr 氏小体: Synonyms: Barr 小体; |
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=13330-6
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://