Document Detail


The nonstress test: how long is enough?
MedLine Citation:
PMID:  7315894     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Longer observation intervals might increase the positive predictive value of a nonreactive nonstress test (NST). One thousand one hundred and one NSTs were performed on 343 fetuses in 333 high-risk hospitalized patients. Recordings were terminated when five fetal heart rate (FHR) accelerations with movement occurred in any 20-minute period or after 120 minutes. The conclusion drawn was that the positive predictive value for morbidity and mortality of a nonreactive NST was 85.7% if conducted over 120 minutes, and that the negative predictive value for a reactive NST was 98.5%. A reactive NST was predictive of good fetal health regardless of the length of observation time necessary to demonstrate reactivity up to 120 minutes.
Authors:
R Brown; J Patrick
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  American journal of obstetrics and gynecology     Volume:  141     ISSN:  0002-9378     ISO Abbreviation:  Am. J. Obstet. Gynecol.     Publication Date:  1981 Nov 
Date Detail:
Created Date:  1982-02-22     Completed Date:  1982-02-22     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370476     Medline TA:  Am J Obstet Gynecol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  646-51     Citation Subset:  AIM; IM    
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MeSH Terms
Descriptor/Qualifier:
Apgar Score
Female
Fetal Distress / diagnosis*
Fetal Heart
Fetal Monitoring*
Gestational Age
Heart Rate
Humans
Infant, Newborn
Pregnancy
Risk
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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