Version 2.80

Description

Eosin-5-maleimide (EMA) is a fluorescent dye used in flow cytometry to screen for hereditary spherocytosis (HS). Patients with HS have red blood cells (RBC) that are overly rigid and misshapen and are removed by the spleen for destruction which leads to anemia, jaundice and splenomegaly. EMA binds covalently to Lys-430 on the first extracellular loop of the Band 3 protein on RBCs. The cytoplasmic portion of Band 3 communicates with ankyrin and protein 4.2 that are crosslinked with the spectrin-based cytoskeleton that acts to stabilize the cell membrane. When band 3 is deficient or abnormal on RBCs fluorescence using EMA may be reduced. The mean fluorescent intensity (MFI) of the patient and control cells is measured and the result is expressed as a ratio of patient MFI to control MFI.[Dacie and Lewis Practical Haematology, 11th edition, Barbara J. Bain, Imelda Bates, Mike A. Laffan, S. Mitchell Lewis, pp250-251]MedlinePlus Condition: hereditary-spherocytosis] Source: Regenstrief LOINC

Basic Part Properties

Part Name
Erythrocytes.EMA mean fluorescence intensity
Part Display Name
Erythrocytes.EMA mean fluorescence intensity
Part Type
Component (Describes the core component or analyte measured)
Created On
2017-01-11
Construct for LOINC Short Name
RBC.EMA MFI

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=LP247810-7

Language Variants Get Info

Tag Language Translation
es-ES Spanish (Spain) Eritrocitos. Intensidad media de fluorescencia de EMA
nl-NL Dutch (Netherlands) erytrocyten.EMA gemiddelde fluorescentie intensiteit
zh-CN Chinese (China) 红细胞.EMA 平均荧光强度
Synonyms: 红细胞.EMA(Eosin-5-maleimide、伊红-5-马来酰亚胺、伊红-5-顺丁烯二酰亚胺) 平均荧光强度(平均荧光亮度、mean fluorescence intensity、MFI)
it-IT Italian (Italy) Eritrociti.EMA significato dell'intensità della fluorescenza
pl-PL Polish (Poland) Erytrocyty, średnia intensywność fluorescencji EMA
el-GR Greek (Greece) Ερυθροκύτταρα.μέση ένταση φθορισμού EMA
Synonyms: Ερυθροκύτταρα.μέση ένταση φθορισμού EMA