Which of the following is false about home O2 therapy?
a. A PRN (as needed) prescription for O2 is acceptable.
b. Hypoxemia can be confirmed by arterial blood gas (ABG) or oximetry.
c. A PaO2 at or below 55 mm Hg documents need.
d. An SaO2 below 88% is clinical evidence of need.
ANS: A
As-needed O2 is no longer acceptable in the postacute care setting.
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