Document Detail

The use of respiratory quotient to determine the efficacy of nutrition support regimens.
MedLine Citation:
PMID:  3102586     Owner:  NLM     Status:  MEDLINE    
Respiratory quotient (RQ) is an indicator of fuel utilization. This study examined the RQs of patients receiving intensive nutrition support to assess the frequency with which net fat synthesis occurred, as determined by RQs greater than 1.0. One hundred twelve RQs were calculated from data obtained using indirect calorimetry. Seventy-four measurements were made while patients were receiving parenteral nutrition--55 with glucose and amino acid (GAAPN) and 19 with glucose, fat, and amino acid (GFAAPN). Thirty-eight measurements were made while patients were receiving either oral or nasoenterally administered carbohydrate, fat, and protein in the form of standard hospital diets or liquid defined formula diets (CFPEN). The mean RQ of the GAAPN patients was significantly higher than those of both the GFAAPN and the CFPEN patients. RQs were greater than 1.0 in a significantly greater number of the GAAPN patients than the GFAAPN or CFPEN patients. The route of nutrient intake did not influence energy nutrient utilization, as determined by RQ. This study suggests that nutrition support regimens containing fat, in addition to carbohydrate and protein, are more efficiently utilized to meet the energy requirements of hospitalized patients than are regimens containing only glucose and amino acid.
C S Ireton-Jones; W W Turner
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the American Dietetic Association     Volume:  87     ISSN:  0002-8223     ISO Abbreviation:  J Am Diet Assoc     Publication Date:  1987 Feb 
Date Detail:
Created Date:  1987-03-30     Completed Date:  1987-03-30     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7503061     Medline TA:  J Am Diet Assoc     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  180-3     Citation Subset:  AIM; IM    
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MeSH Terms
Calorimetry, Indirect
Dietary Carbohydrates / administration & dosage
Dietary Fats / administration & dosage
Energy Intake
Energy Metabolism*
Enteral Nutrition*
Food, Formulated
Middle Aged
Parenteral Nutrition*
Reg. No./Substance:
0/Dietary Carbohydrates; 0/Dietary Fats

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

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