Your overnight junior calls for your help with his decompensating intubated patient. The patient is a 54 year-old male with a history of COPD who was intubated ten minutes ago. The ventilator is alarming due to high pressures. The patient’s current vitals are HR 140, BP 80/50, SpO2 82%. The ventilator settings are VCV rate 12, tidal volume 450, PEEP 15, FiO2 100%. You quickly disconnect the circuit but the patient is not improving. What do you do next?