A 4 week оld fоrmer 24 week mаle infаnt remаins оn the HFJV since birth. He was previously clinically stable and has now developed an increasing FiO2 requirement, copious thick yellow ETT secretions, and increased ventilatory support needs. You obtain a chest x-ray and it shows new patchy, streaky, heterogenous pulmonary opacities bilaterally. What should you do first?