The National Institute for Occupational Safety and Health (NIOSH) set the maximum exposure limit for N2O concentration to 25 ppm for dental personnel

A lock out/tag out information sheet at the site of a new building being constructed contains information regarding:

A) the closest firefighting standpipe in relation to the area. B) the quantities and types of materials of potential exposure. C) the number of people and conditions in the danger zone. D) the length of time it will take to complete the construction.

Upon arrival to the emergency department, a patient is found to have an SpO2 of 75% on a non-rebreathing 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 defec-tive. 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.