When performing positive end expiratory pressure (PEP) therapy, a desired pressure range to achieve during exhalation is:

In which one of the following cases could you legally and ethically accept a patient's refusal of care?

A) The patient is unresponsive. B) The patient has been informed of the risks and benefits of care and refusing care. C) The patient is under the influence of alcohol or drugs. D) The patient is a minor and the parent or guardian is not available.

The mass of aerosol particles produced by a nebulizer in a given unit time best describes which quality of the aerosol?

a. Stability b. Density c. Output d. Deposition