4558-3

Hemoglobin Barts [Presence] in Blood by Electrophoresis acid (pH 6.3)

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Part Description

LP16418-3 Hemoglobin Barts
Hemoglobin Barts is a relatively common hemoglobin variant consisting of four gamma chains. Hemoglobin Barts is an extremely high affinity hemoglobin that is not effective at delivering oxygen to tissues. Hemoglobin Barts is only seen during the newborn period and usually indicates that one or more of the baby's alpha-globin genes are deleted, resulting in alpha-thalassemia. Alpha thalassemia is caused by deletions of the alpha globin genes on chromosome 16. Normal patients have four copies of the alpha-globin gene, 2 on each chromosome. A silent carrier will have one deleted alpha gene and usually result in a benign condition. Alpha thalassmia trait occurs when there are two deleted alpha genes, resulting in mild or no anemia with microcytosis and hypochromia. Hemoglobin H disease results from the deletion of three alpha genes with resultant moderately severe alpha thalassemia. Most patients are anemic and display some degree of splenomegaly. Fetal hydrops syndrome occurs when all four alpha genes are deleted. Fetal hydrops is not compatible with life and death occurs in utero or during early infancy.Carrier states for alpha thalassemia are very common in the African, Meditteranean and Asian populations. In general, only the loss of one or two genes is seen in African Americans. Asian and Meditteranean populations may have all types of alpha thalassemia. Information from The Georgia Comphensive Sickle Cell Center at Grady Health System, Emory University School of Medicine Department of Pediatrics, Atlanta, GA at www.scinfo.org, accessed 2007 11 02, and The Utah Department of Health at www.health.utah.gov, accessed 2007 11 02. Source: Regenstrief Institute

Fully-Specified Name

Component: Hemoglobin Barts
Property: PrThr
Time: Pt
System: Bld
Scale: Ord
Method: Electrophoresis pH 6.3

Additional Names

Long Common Name: Hemoglobin Barts [Presence] in Blood by Electrophoresis acid (pH 6.3)
Short Name: Hgb Barts Bld Ql Elph Acid
Display Name: Hemoglobin Barts Elph pH 6.3 Ql (Bld)
Consumer Name Alpha Get Info: Hemoglobin barts, Blood

Basic Attributes

Class: HEM/BC
Type: Laboratory
First Released: Version 1.0
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: Observation

Language Variants Get Info

Tag	Language	Translation
el-GR	Greek (Greece)	Αιμοσφαιρίνη Barts:PrThr:Pt:Αίμα:Ord:Ηλεκτροφόρηση pH 6,3 Synonyms: PrThr Αιμοσφαιρίνη Αιμοσφαιρίνη Barts
es-AR	Spanish (Argentina)	hemoglobina de Barts:concentración arbitraria:punto en el tiempo:sangre:ordinal:electroforesis pH 6,3
es-ES	Spanish (Spain)	Hemoglobina Barts:PrThr:Punto temporal:Sangre:Ord:Electroforesis ácida (pH 6.3)
es-MX	Spanish (Mexico)	Barts de hemoglobina:Presencia o umbral:Punto temporal:Sangre:Ordinal:Ácido de electroforesis (pH 6,3)
fr-CA	French (Canada)	Hémoglobine Bart:Présence-Seuil:Temps ponctuel:Sang:Ordinal:Électrophorèse à pH 6,3
fr-FR	French (France)	Hémoglobine Barts:Présence/Seuil:Ponctuel:Sang:Qualitatif:Électrophorèse pH 6,3
fr-BE	French (Belgium)	Hémoglobine Bart:PrThr:Temps ponctuel:Sang:Ordinal:Électrophorèse à pH 6,3 Synonyms: Hb Hb Bart
it-IT	Italian (Italy)	Emoglobina Bart:PrThr:Pt:Sangue:Ord:Elettroforesi pH 6,3 Synonyms: Elettroforesi acida (pH 6,3) Ematologia (coagulazione) conta differenziale Emoglobina di Bart Presenza o Soglia Punto nel tempo (episodio) Sangue
ko-KR	Korean (Korea, Republic Of)	바르트혈색소:임의농도:검사시점:전혈:순위척도:전기영동 pH 6.3
nl-NL	Dutch (Netherlands)	hemoglobine Barts:aanwezigheid:moment:bloed:ordinaal:elektroforese pH 6.3
pl-PL	Polish (Poland)	Hemoglobina Barts:granica wykrywalności:punkt w czasie:krew:półilościowy:elektroforeza kwaśna (pH=6, 3)
pt-BR	Portuguese (Brazil)	Hemoglobina Barts:ACnc:Pt:SgTotal:Ord:Eletroforese pH 6.3 Synonyms: ; Hgb Barts; Hb; Haemoglobin; Arbitrary concentration; Point in time; Random; Blood; WB; Whole blood; Ql; Ordinal; QL; Qualitative; Qual; Screen; Elph Acid; Elp; Elect; Electrophrs; Electrophhrs; Electr; Elec; Ep; Electro; Bart; Bart's; HEMATOLOGY/CELL COUNTS; HEMATOLOGY/CELL COUNTS
tr-TR	Turkish (Turkey)	Hemoglobin Barts:MevcEşik:Zmlı:Kan:Srl:Elektroforez pH 6.3 Synonyms: Mevcut
zh-CN	Chinese (China)	血红蛋白 Barts:存在情况或阈值:时间点:全血:序数型:电泳 pH 6.3 Synonyms: Bart Bart's Hgb Barts 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）巴氏时刻;随机;随意;瞬间氧血红蛋白;血红朊;血红素;血色素电泳(pH 6.3);酸性电泳;酸性电泳 pH 6.3;酸性电泳(pH 6.3) 电泳分析;电泳分析方法;电泳分析类实验室方法;电泳分析类方法;电泳分析类检验方法;电泳方法;电泳类实验室方法;电泳类方法;电泳类检验方法血;血液血液学/细胞计数;血液学与细胞计数

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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.