In Providing Care to a Patient Admitted with Oral Trauma

In providing care to a patient admitted with oral trauma, which arterial blood gas results does the nurse recognize as most indicative of respiratory compromise?

A) pH 7.32 PaCO₂ 30 mm Hg PaO₂ 70 mm Hg
B) pH 7.47 PaCO₂ 48 mm Hg PaO₂ 65 mm Hg
C) pH 7.45 PaCO₂ 43 mm Hg PaO₂ 80 mm Hg
D) pH 7.30 PaCO₂ 50 mm Hg PaO₂ 50 mm Hg