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Breastfeed Med. 2009 Sep;4(3):151-6. doi: 10.1089/bfm.2008.0125.

The development of an accurate test weighing technique for preterm and high-risk hospitalized infants.

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  • 1Lactation Consultation Service, Medical University of South Carolina, Charleston, South Carolina 29425, USA.

Abstract

BACKGROUND:

Test weighing, or weighing the infant before and after breastfeeding to assess milk intake, in which weight gain in grams is converted equally to volume of intake in milliliters, is a controversial topic in the literature. This study was initiated to identify variables that impact test weights and to develop an accurate test weighing technique for preterm and high-risk hospitalized infants.

METHODS:

Test weights were performed on a sample of hospitalized high-risk infants with and without leads who were bottle- or nasogastric-fed. Volume consumed was compared to weight gain to determine whether the developed technique was accurate.

RESULTS:

In each group, with or without leads, only one measure of actual intake versus test weight result was found outside the confidence limits (95%), and only one measure was found outside the clinically acceptable difference of +/-5 g. Correlation coefficient (r(2)) values of weight gain by test weight to volume of intake were 0.998 for infants without leads and 0.997 for infants with leads.

CONCLUSIONS:

The data from this study support the use of this test weighing technique as an accurate, objective assessment of the measurement of breastmilk intake after a breastfeeding session, thus allowing medical decisions regarding supplementation to be based on objective data rather than inaccurate clinical indices of the quality of infant feedings at the breast.

PMID:
19739951
DOI:
10.1089/bfm.2008.0125
[PubMed - indexed for MEDLINE]
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