After pulmonary artery catheter insertion, the nurse assesses a pulmonary artery pressure of 45/25 mm Hg, a pulmonary artery occlusion pressure (PAOP) 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? a. Apply 50% oxygen via venture mask.
b. Insert an indwelling urinary catheter.
c. Begin a dobutamine (Dobutrex) infusion.
d. Obtain stat cardiac enzymes and troponin.
C
The pulmonary pressures are higher than normal, indicating elevated preload, and the cardiac index and output values are low. The priority order for the nurse to implement is to begin a dobutamine (Dobutrex) infusion to improve cardiac output, possibly reducing pulmonary artery occlusion pressures. The other treatments are important, but the dobutamine infusion is the most important at this time.
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