Upon Arrival to the Emergency Department,a Patient Is Found to Have

Upon arrival to the emergency department,a patient is found to have an SpO₂ of 75% on a nonrebreathing mask.You notice that the nonrebreathing mask is hooked to a bubble humidifier.The humidifier bottle is whistling and is expanded. What is your next action as the respiratory therapist?

A) Change the bubble humidifier; it's defective.
B) Check for kinks in tubing.
C) Remove the nonrebreathing mask from the humidifier and run off of O₂.
D) Place a Venturi mask on the patient.