Table 1.
Baseline metabolic, ventilatory, and hemodynamic variables during intravenous infusion of saline and dopamine
| n | Saline | Dopamine | P Value | |
|---|---|---|---|---|
| Glucose, mg/dl | 12 | 101 ± 3 | 103 ± 2 | 0.740 |
| Growth hormone, ng/ml | 12 | 2.9 ± 0.9 | 5.2 ± 1.3 | 0.056 |
| Glucagon, pg/ml | 12 | 77 ± 7 | 83 ± 7 | 0.413 |
| Cortisol, µg/ml | 12 | 14.8 ± 2.1 | 12.4 ± 1.2 | 0.314 |
| Insulin, µU/ml | 10 | 6.6 ± 1.0 | 7.1 ± 0.8 | 0.715 |
| Norepinephrine, pg/ml | 11 | 297 ± 50 | 324 ± 68 | 0.582 |
| Epinephrine, pg/ml | 12 | 116 ± 28 | 121 ± 26 | 0.669 |
| Free glycerol, mg/dl | 10 | 8.3 ± 0.8 | 8.7 ± 0.8 | 0.664 |
| Lactate, mmol/l | 12 | 0.7 ± 0.1 | 0.6 ± 0.1 | 0.054 |
| Respiratory exchange ratio | 11 | 0.83 ± 0.03 | 0.78 ± 0.03 | 0.129 |
| Ventilation, l/min | 11 | 9.6 ± 1.3 | 9.1 ± 1.0 | 0.334 |
| V̇e/V̇co2 | 11 | 36.9 ± 1.8 | 35.7 ± 1.2 | 0.430 |
| Oxygen consumption, ml·kg−1·min−1 | 11 | 4.6 ± 0.5 | 4.3 ± 0.4 | 0.419 |
| , mmHg | 11 | 39 ± 1 | 40 ± 1 | 0.248 |
| Intestinal temperature, °C | 7 | 36.9 ± 0.1 | 37.0 ± 0.1 | 0.386 |
| Heart rate, beats/min | 12 | 63 ± 3 | 65 ± 3 | 0.398 |
| Mean arterial pressure, mmHg | 12 | 92 ± 3 | 90 ± 3 | 0.325 |
Values are means ± SE; n, no. of experiments. V̇e/V̇co2, ventilatory equivalent for carbon dioxide production; , partial pressure of end-tidal carbon dioxide.