Document Detail

An easy and accurate method of estimating newborn birthweight for resuscitation.
MedLine Citation:
PMID:  1418136     Owner:  NLM     Status:  MEDLINE    
Emergency administration of medication based on birthweight is often required in newborn resuscitation. Actual weighing is often delayed because of the emergency situation. Therefore drugs are given according to weight estimates by physicians or nurses. The purposes of this study were to develop a measuring tape using the infant's length and head circumference to determine body weight and to evaluate the performance of the tape measurements to staffs' estimates. Weight, length, and head occipitofrontal circumference (OFC) measurements of 200 newborn infants were collected. By regression analyses, the best log curve for both length and OFC versus weight was determined. From these data, a measuring tape was constructed with the corresponding weights marked for both length and OFC. Forty-five newborn infants with gestational ages of 26 to 40 weeks were studied. Prior to actual weighing, estimates of the birthweights were obtained and recorded from the tape measurements using both the length and OFC and staffs' estimates. For infants less than 2 kg, the average percent error was less by the tape length (1.2%) and OFC (0.7%) compared with staffs' estimates (-7.2%). The tape was also useful in estimating weights of small for gestational age infants. The tape OFC (7.8% error) was more accurate than staffs' estimates (26% error) in these growth-retarded infants. The clinical precision of the tape was 3% with an intrameasurer variability of 5%. We conclude that estimating the birthweight in infants using our tape method is a practical and more accurate way than staff estimates, especially for low birthweight and small for gestational age infants.
G M Chan; L Moyer-Mileur; L Rallison
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American journal of perinatology     Volume:  9     ISSN:  0735-1631     ISO Abbreviation:  Am J Perinatol     Publication Date:    1992 Sep-Nov
Date Detail:
Created Date:  1992-12-16     Completed Date:  1992-12-16     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8405212     Medline TA:  Am J Perinatol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  371-3     Citation Subset:  IM    
Department of Pediatrics, University of Utah, Salt Lake City.
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MeSH Terms
Anthropometry / methods*
Birth Weight*
Body Height
Head / anatomy & histology
Infant, Newborn
Regression Analysis
Retrospective Studies

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

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