The pain radiates to her shoulder

Which of the following respiratory hazards can be protected against using high-efficiency particulate (HEPA) filters?

A. Oxygen levels B. Gases and vapors C. Airborne pathogens D. Elevated temperatures

Using good judgment in what you say and do and making sure that a patient's rights are not violated demonstrates ____

A) competence B) tact C) dependability D) discretion