The newest edition of the Nutritional Guide is still available for purchase! The AARC has published the updated second edition of the nutritional guide for the assessment and treatment of the critically ill patient. As the role of the respiratory therapist emerges in the critical care area to include indirect calorimetry monitoring and testing, this guide will serve as an excellent resource to provide better understanding of the nutritional implications that drive metabolic testing and the subsequent treatment recommendations that come as a result of the extrapolated data.