Source:http://linkedlifedata.com/resource/pubmed/id/10086805
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1999-4-15
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pubmed:abstractText |
Quantitation of feto-maternal haemorrhage (FMH) by flow cytometry (FC) has been shown to be more accurate than the Kleihauer-Bekte test. Fetal cells will be predominately of R1r or R2r phenotype, with antigen site numbers per cell (SPC) of between 9900 and 16000. If the fetus is of weak D or partial D(VI) phenotype, fewer SPC will be present. Red cells from 20 adult weak D samples were mixed with rr red cells to give 1% mixes. Mixtures were stained and analysed by FC, using two different monoclonal reagents. The SPC of each sample was measured using SOL-ELSA with Scatchard plot analysis. 18 samples could not be distinguished and had <1000 SPC. Two samples that could be distinguished had 1350 and 3000 SPC. Red cells from seven samples of D(VI) were also analysed. None of these samples could be distinguished: SPC were all <1000. Although one of the reagents used reacts with D(VI) cells, quantitation of a D(VI) FMH would not be possible due to low SPC. The ability of fetal red cells with low Rh D SPC to cause immunization is questionable; failure to measure FMH in these cases is unlikely to cause clinical problems, as long as suitably sensitive serological reagents and techniques are used to type all weak D and D variant babies as Rh D positive, and thus ensure that the mother is given the appropriate dose of anti-D.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
0007-1048
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
104
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
621-5
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:10086805-Adult,
pubmed-meshheading:10086805-Blood Grouping and Crossmatching,
pubmed-meshheading:10086805-Female,
pubmed-meshheading:10086805-Fetomaternal Transfusion,
pubmed-meshheading:10086805-Humans,
pubmed-meshheading:10086805-Infant, Newborn,
pubmed-meshheading:10086805-Organizational Policy,
pubmed-meshheading:10086805-Pregnancy,
pubmed-meshheading:10086805-Rh Isoimmunization,
pubmed-meshheading:10086805-Rho(D) Immune Globulin
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pubmed:year |
1999
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pubmed:articleTitle |
Detection of weak D and D(VI) red cells in D-negative mixtures by flow cytometry: implications for feto-maternal haemorrhage quantification and D typing policies for newborns.
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pubmed:affiliation |
International Blood Group Reference Laboratory, Bristol. paul.lloyd-evans@nbs.nhs.uk
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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