A 6-year-old male is in severe respiratory distress with inspiratory stridor. He has pale, moist skin, with cyanosis noted around his mouth. The patient is very lethargic and cannot hold his head up. His mother is panicked and reports that he has a history of asthma. Breath sounds are diminished and his vital signs are pulse, 162 beats/min; respirations, 40 breaths/min; blood pressure, 122/66 mmHg; and SpO2, 81%. What would your immediate action be?

A) Apply a nonrebreather mask with 15 lpm oxygen
B) Insert an oral airway and ventilate with a bag-valve mask
C) Start positive pressure ventilation
D) Administer the patient's albuterol MDI and provide immediate transport

C) Start positive pressure ventilation