Indirect calorimetry (IC) is considered as the gold standard for assessing nutritional needs in critically ill patients. IC determines energy expenditure by measuring pulmonary gas exchanges. It is a non-invasive technique that allows dietitians (RD) to personalize the nutritional support to meet the metabolic needs, leading to improved outcomes. You can use this with a hood for a non-intubated patient or through an inline attachment to the endotracheal tube when patients are intubated. Have you