A client sitting upright and receiving high-flow oxygen with a nonrebreather mask appears anxious and has a respiratory rate of 30 breaths/min, a heart rate of 110 beats/min, and an oxygen saturation of 88%. The client is using accessory muscles to breathe and appears fatigued. The nurse notifies the provider and prepares to receive an order for which intervention?
A) Chest x-ray and arterial blood gases
B) Insertion of an oral airway
C) Intubation and mechanical ventilation
D) Lowering the head of the bed to 30 degrees
