Document Classification

Section Type: RESULTS

Text: Acute hypercapnia (Paco2 from 40 + / -3 to 52 + / -3 torr, p <. 05) increased cardiac index (3. 43 + / -0. 37 vs. 3. 97 + / -0. 43 mL/min/m2, p <. 05), heart rate (95 + / -6 vs. 105 + / -3 beats/min, p <. 05), and mean pulmonary artery pressure (21 + / -1 vs. 24 + / -1 mm Hg, p <. 05) and reduced systemic vascular resistance (992 + / -98 vs. 813 + / -93 dyne x sec / cm5, p <. 05) and oxygen extraction ratio (27 + / -3 % vs. 22 + / -2 %, p <. 05).