| Day-to-day energy expenditure variability in low birth weight neonates. | |
| | |
MedLine Citation:
|
PMID: 3099256 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
We estimated the metabolic rate of 13 low birth weight infants over a 9-day period, using indirect calorimetry in conjunction with serial measurements of oxygen consumption, carbon dioxide production, and total urinary nitrogen excretion. The mean percent error for oxygen consumption and carbon dioxide production measurements (determined by alcohol combustion experiments) assignable to the open-circuit system was 0.4 and 3.8%, respectively. Error in the total urinary nitrogen excretion measurement was less than 1% by the Kjeldahl technique. In the clinical setting, however, the range of deviation of measured oxygen consumption, carbon dioxide production and total urinary nitrogen excretion was +/- 12, 12, and 15% of the mean value respectively for an individual patient under standardized controlled conditions. The variability of metabolic rate between infants may be as much as 76%. Factors that had a small effect on metabolic rate were difficult to detect because of the variability inherent in the short-term measurement of metabolic rate. It was virtually impossible to control the sources of variation in the resting metabolism of low birth weight neonates over extended experimental periods. Day-to-day variations in resting energy expenditure may explain, in part, the widely different growth rates of premature infants receiving similar caloric intakes. |
| | |
Authors:
|
K H Marks; E E Nardis; J A Derr |
Related Documents
:
|
9255196 - Potassium metabolism in extremely low birth weight infants in the first week of life. 11668166 - Nephrocalcinosis in preterm babies. 8495086 - Urinary nitrite excretion in premature infants: effects of transfusion or indomethacin. 8323366 - Ranitidine pharmacokinetics in newborn infants. 14986126 - Diagnostic strategies for the evaluation of asymmetry in infancy-a review. 10854616 - A probabilistic approach to the assessment of some life history pattern parameters in a... |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
|
Title: Pediatric research Volume: 21 ISSN: 0031-3998 ISO Abbreviation: Pediatr. Res. Publication Date: 1987 Jan |
Date Detail:
|
Created Date: 1987-02-19 Completed Date: 1987-02-19 Revised Date: 2007-11-14 |
Medline Journal Info:
|
Nlm Unique ID: 0100714 Medline TA: Pediatr Res Country: UNITED STATES |
Other Details:
|
Languages: eng Pagination: 66-71 Citation Subset: IM |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Carbon Dioxide
/
biosynthesis Circadian Rhythm* Energy Metabolism* Humans Infant, Low Birth Weight* Infant, Newborn Mathematics Methods Oxygen Consumption |
| Grant Support | |
ID/Acronym/Agency:
|
HD-16399/HD/NICHD NIH HHS |
| Chemical | |
Reg. No./Substance:
|
124-38-9/Carbon Dioxide |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: The accuracy and precision of an open-circuit system to measure oxygen consumption and carbon dioxid...
Next Document: 36Cl fluxes in dispersed rat submandibular acini: effects of Ca2+ omission and of the ionophore A231...