What instrument can be calibrated to read air kerma?

The standard concentration of routinely used medications is called the __________________________________________ __________________________________________

Fill in the blank(s) with correct word

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.