Indirect Calorimetry
- 1 May 2003
- journal article
- review article
- Published by AACN Publishing in AACN Advanced Critical Care
- Vol. 14 (2), 155-167
- https://doi.org/10.1097/00044067-200305000-00005
Abstract
Physiologic monitoring of the patient's metabolic response to illness and nutritional needs has been available for many decades. Traditional methods for estimating and intermittently assessing the patient's metabolic status provide incomplete and often misleading information. The measurement oxygen consumption (VO2) and carbon dioxide production (VCO2) for assessment of the critically ill patient's metabolic status has been underutilized partly because of the limitations of available technologies. Recent advances in gas exchange technologies have made VO2 and VCO2 assessment readily available at the bedside on a continuous basis. This article provides a clinical review of specific current literature related to indirect calorimetry. A synthesis of the data supports the use of gas exchange measurements of VO2 and VCO2 for serial assessment of metabolic changes and for monitoring of the patient's nutritional status. Furthermore, a multidisciplinary approach to metabolic monitoring and nutritional assessment provides a cost-efficient means of patient care, which, when properly implemented, improves patient outcomes.Keywords
This publication has 48 references indexed in Scilit:
- A prospective survey of nutritional support practices in intensive care unit patients: What is prescribed? What is delivered?Critical Care Medicine, 2001
- Components of energy expenditure in patients with severe sepsis and major traumaCritical Care Medicine, 1999
- Accuracy of 30‐Minute Indirect Calorimetry Studies in Predicting 24‐Hour Energy Expenditure in Mechanically Ventilated, Critically Ill PatientsJournal of Parenteral and Enteral Nutrition, 1997
- Validation of a 5-minute steady state indirect calorimetry protocol for resting energy expenditure in critically ill patients.Journal of the American College of Nutrition, 1996
- Clinical validation of the Deltatrac monitoring system in mechanically ventilated patientsIntensive Care Medicine, 1995
- Clinical Comparison of Three Methods to Determine Resting Energy ExpenditureNutrition in Clinical Practice, 1994
- An in vitro evaluation of an instrument designed to measure oxygen consumption and carbon dioxide production during mechanical ventilationCritical Care Medicine, 1994
- Variability of the Harris‐Benedict Equation in Recently Published TextbooksJournal of Parenteral and Enteral Nutrition, 1992
- Work of breathingCritical Care Medicine, 1990
- Measurement of gas exchange in intensive careCritical Care Medicine, 1989