| Reference ranges for blood concentrations of eosinophils and monocytes during the neonatal period defined from over 63 000 records in a multihospital health-care system. | |
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MedLine Citation:
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PMID: 20054336 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: Blood concentrations of eosinophils and monocytes are part of the complete blood count. Reference ranges for these concentrations during the neonatal period, established by very large sample sizes and modern methods, are needed for identifying abnormally low or high values. STUDY DESIGN: We constructed reference ranges for eosinophils per microl and monocytes per microl among neonates of 22 to 42 weeks of gestation, on the day of birth, and also during 28 days after birth. Data were obtained from archived electronic records over an eight and one-half-year period in a multihospital health-care system. In keeping with the reference range concept, values were excluded from neonates with a diagnosis of infection or necrotizing enterocolitis (NEC). RESULT: Eosinophils and monocytes per microl of blood were electronically retrieved from 96 162 records, of which 63 371 that lacked a diagnosis of infection or NEC were included in this reference range report. The mean value for eosinophils per microl on the day of birth increased linearly between 22 and 42 weeks of gestation, as did the 5 and 95% values. The reference range at 40 weeks was 140 to 1300 microl(-1) (mean 550 microl(-1)). Similarly, the mean value for monocytes increased linearly over this interval, with a reference range at 40 weeks of 300 to 3300 microl(-1) (mean 1400 microl(-1)). Over the first 4 weeks after birth, no appreciable change was observed in 5% limit and mean eosinophil count, with a slight increase in the 95% limit in week 4. A slight increase in monocyte count was observed during the first 2 weeks after birth.Conclusion:The results of this analysis describe reference ranges for blood concentrations of eosinophils and monocytes during the neonatal period. Additional study is needed for determining the relevance of values falling outside the reference range. |
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Authors:
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R D Christensen; J Jensen; A Maheshwari; E Henry |
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Publication Detail:
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Type: Journal Article; Multicenter Study Date: 2010-01-07 |
Journal Detail:
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Title: Journal of perinatology : official journal of the California Perinatal Association Volume: 30 ISSN: 1476-5543 ISO Abbreviation: J Perinatol Publication Date: 2010 Aug |
Date Detail:
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Created Date: 2010-07-29 Completed Date: 2010-11-22 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8501884 Medline TA: J Perinatol Country: United States |
Other Details:
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Languages: eng Pagination: 540-5 Citation Subset: IM |
Affiliation:
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Intermountain Healthcare Women and Newborns Clinical Program, Ogden, UT, USA [2] McKay-Dee Hospital Center, Ogden, UT, USA. rdchris4@ihc.com |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Eosinophils Gestational Age Humans Infant, Newborn Leukocyte Count* Monocytes Reference Values* Retrospective Studies |
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