A pt w resp infection sustained blunt trauma in MVA. Pt is on O₂ via face mask and is hemodynamically stable. The RN should anticipate which of the following interventions to prevent development of acute resp distress syndrome.
A. Prophylactic mechanical ventilation w/ large tidal volumes
B. minimizing transfusion of packed red blood cells
C. measures to keep pt pH 7.25-7.35
D. withholding antibiotic therapy until definitive identification of the organism is made.