• K S Jih, M F Wang, J H Chow, and C C Yen.
• Department of Medicine, Taichung Veterans General Hospital, Taiwan, R.O.C.
• Zhonghua Yi Xue Za Zhi (Taipei). 1996 Nov 1; 58 (5): 359-65.

AbstractComplications may occur when nutritional support is administered either parenterally or enterally. Inappropriate nutritional formulas with high carbohydrate loads can precipitate respiratory failure in patients with compromised lung function, induce respiratory distress which manifests as dyspnea and tachypnea in an originally normal lung condition, produce hypercapnic acidosis in mechanically ventilated patients with chronic obstructive pulmonary disease (COPD) as well as patients recovering from acute respiratory distress syndrome (ARDS) without chronic lung disease, or result in difficult weaning. Hypercaloric mixed substrates administered either parenterally or enterally can also have profound impacts on gas exchange and energy expenditure. This report describes a patient who experienced exacerbation of respiratory distress and hypercapnic acidosis during recovery from septic ARDS as the result of a nutritionally-related increase in CO2 production. As carbohydrate calories were decreased, CO2 production diminished and the hypercapnia was resolved. The importance of indirect calorimetry cannot be overemphasized during tailoring of nutritional support for the critically ill patients.

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