Abstracts:
Energy Expenditure (E.E.) Calculated by the Fick Equation in Respiratory Failure: Use of the Pulmonary Artery Catheter.

E.E. (kcal/day) = Q x Hgb x (SaO2 - SvO2) x 95; use of this formula may prevent overfeeding the patient on a ventilator, which results in increased CO₂ production and a delay in weaning. Recent data indicates that the commonly used stress factors often overestimate the caloric needs in many patients with respiratory failure. Most patients require less than 2000 kcal/day. Lipid should be used to provide 40% to 60% of the total nonprotein calories, since glucose loading can increase CO₂ production and therefore increase minute ventilation demands. Am J Med. 1990; 88: 274.

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