Which of the Following Assessment Findings by the Nurse When

Which of the following assessment findings by the nurse when caring for a client with ARDS who is being treated with mechanical ventilation and high levels of positive end-expiratory pressure (PEEP) indicates that the PEEP may need to be decreased?

A) The client has subcutaneous emphysema.
B) The client has a sinus bradycardia with a rate of 52.
C) The client's PaO₂ is 50 mm Hg and the SaO₂ is 88%.
D) The client has bronchial breath sounds in both the lung fields.