How many different systems/body areas are listed in the general multi-system physical examination guidelines?

The acceptable lower limit of PaO2 for a mechanically ventilated patient with ARDS is which of the following?

a. 50 mm Hg b. 60 mm Hg c. 70 mm Hg d. 80 mm Hg

What phase of the dental hygiene process involves determining dental hygiene therapy and the establishment of realistic patient goals?

A) Implementation phase B) Planning phase C) Treatment phase D) Assessment phase