After pulmonary artery catheter insertion, the nurse assesse…

After pulmonary artery catheter insertion, the nurse assesses a pulmonary artery pressure of 45 mm Hg systolic, a pulmonary artery wedge pressure (PAWP) of 20 mm Hg, a cardiac output of 2.6 L/min and a cardiac index of 1.9 L/min/m2. Which physician order is of the highest priority?