An 18 month-old child has 1 week history of cough and runny nose. The child has diffuse cyanosis and responsive only to painful stimulation with slow respirations and rapid central pulses. The child's respiratory has decreased from 65/min to 10/min, severe inspiratory intercoastal retractions are present, HR is 160/min, SPO2 is 65% on RA, and capillary refill is less than2 seconds. Which are the most appropriate immediate interventions for this toddler?
