The heart and lungs are located in the ________ cavity

Which statement about the use of thermometers is true?

A. The use of external thermometers, such as the tympanic thermometer, poses less risk of infection for your patient. B. You do not need to wash your hands after taking a patient's temperature with a forehead or skin thermometer because it is not an invasive procedure. C. The rectal method is preferred over the tympanic method. D. Tympanic thermometers can harbor an infectious biofilm that may not be visible.

While preparing to perform endotracheal suctioning on a mechanically ventilated patient, the therapist is alerted to the activation of low-pressure and low-volume alarms. These alarms are mandatory, redundant, and noncanceling. How should the therapist classify this event?

A. Level 4 B. Level 3 C. Level 2 D. Level 1