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Table 2 Substrate metabolism of all patients at different calorimetric measurement

From: Resting energy expenditure and substrate oxidation rates correlate to temperature and outcome after cardiac arrest - a prospective observational cohort study

  Points of measurement (°C)
33 34.5 36 36.8 37.6
RQ 0.72 (0.69-0.83) 0.76 (0.72-0.82) 0.76 (0.74-0.79) 0.75 (0.72-0.79) 0.75 (0.73-0.78)
VO2 (ml/min) 187 (147-220) 215 (179-248) 243 (191-266) 264 (221-313) 259 (246-311)
VCO2 (ml/min) 136 (122-151) 162 (138-187) 185 (148-199) 193 (173-232) 198 (189-234)
pH 7.36 (7.29-7.41) 7.36 (7.31-7.40) 7.37 (7.32-7.40) 7.35 (7.26-7.40) 7.34 (7.29-7.43)
Lactate (mmol/l) 1.4 (1.0-2.0) 1.4 (1.0-1.9) 1.2 (0.9-1.7) 1.1 (0.9-1.4) 1.0 (0.9-1.6)
UNP (g/d) 6.1 (2.3-9.1) 4.2 (1.2-12.1) 3.4 (1.9-8.8) 9.7 (4.7-22.1) 4.4 (0.5-16.3)
Glucose (g/d) −5 (−50-92) 79 (−13-113) 67 (14-106) 36 (−27-86) 50 (5-105)
Fat (g/d) 125 (55-154) 118 (69-137) 128 (109-164) 153 (106-175) 140 (119-178)
Protein (g/d) 38.3 (14.2-57.1) 25.9 (7.7-75.3) 21.4 (11.9-55.3) 60.4 (29.6-137.8) 27.5 (2.9-101.9)
Creatinine (mg/dl) 0.96 (0.65-1.05) 0.87 (0.70-0.99) 0.92 (0.79-1.05) 0.91 (0.73-1.07) 0.98 (0.76-1.14)
  1. Negative glucose values reflect net gluconeogenesis whereas positive values indicate glucose oxidation. Additionally arterial blood ph and lactate are given as marker of aerobe metabolism and creatinine as marker of renal function. Values are expressed as median with 25 to 75% quartiles. RQ, respiratory quotient; VO2, oxygen consumption; VCO2, carbon dioxide production; UNP, urea nitrogen production.