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Predicate | Object |
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rdf:type | |
lifeskim:mentions |
umls-concept:C0024467,
umls-concept:C0034378,
umls-concept:C0042295,
umls-concept:C0178932,
umls-concept:C0205360,
umls-concept:C0229671,
umls-concept:C0302583,
umls-concept:C0334866,
umls-concept:C0444504,
umls-concept:C0557806,
umls-concept:C0557854,
umls-concept:C1510438,
umls-concept:C1511726,
umls-concept:C1527178,
umls-concept:C1705938,
umls-concept:C2603343
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pubmed:issue |
4 Suppl
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pubmed:dateCreated |
1983-11-23
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pubmed:abstractText |
Data from magnesium and iron analyses of pools of lyophilized quality control serum were used to evaluate stability of analyte mean values in the pre-reconstitution period. Information was received from laboratories in Regional Quality Control Programs between 1977 and 1981, using CAP Quality Assurance Service data processing. For magnesium, 28 of 41 (68%) pool-method combinations were stable, 11 (27%) showed decreases, and 2 (5%) showed increases. Decreases averaged 0.008 mg/dL/month (all methods). A pronounced effect of method (automated methylthymol blue) and year correlated with decreases in measurable magnesium. For iron, 45 of 56 (80%) pool-method combinations were stable, 8 (15%) showed decreases, and 3 (5%) showed increases. Decreases averaged 0.349 g/dL (all methods). In most cases, changes in measured concentrations are attributed to methodologic factors, rather than intrinsic changes in analyte concentrations.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0002-9173
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
80
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
563-9
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:6624727-Autoanalysis,
pubmed-meshheading:6624727-Drug Stability,
pubmed-meshheading:6624727-Freeze Drying,
pubmed-meshheading:6624727-Humans,
pubmed-meshheading:6624727-Iron,
pubmed-meshheading:6624727-Magnesium,
pubmed-meshheading:6624727-Pathology, Clinical,
pubmed-meshheading:6624727-Reference Values,
pubmed-meshheading:6624727-Societies, Medical,
pubmed-meshheading:6624727-Spectrophotometry, Atomic,
pubmed-meshheading:6624727-United States
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pubmed:year |
1983
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pubmed:articleTitle |
Stability of mean assay values of magnesium and iron in lyophilized quality control serum: a study based on data from the quality assurance service (QAS) of the College of American Pathologists.
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pubmed:publicationType |
Journal Article
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