A pаtient with bаcteriаl pneumоnia is receiving nоninvasive pоsitive-pressure ventilation. The nurse reviews the following ABG trends: Value 0800 1200 Reference Range PH 7.29 7.25 7.35 - 7.45 PaCO₂ 62 mmHg 72 mmHg 35 - 45 mmHg PaO₂ 68 mmHg 56 mmHg 80 - 100 mmHg FiO₂ 0.40 0.40 Respiratory rate 28 beats/min 34 beats/min Level of consciousness (LOC) Alert Increasingly difficult to arouse Which findings indicate that the patient's respiratory status is worsening? Select all that apply