You are called to a skilled nursing facility to transport an 83-year-old male with dementia and suspected influenza. Which source is best for gathering the patient's medical history?

Which of the following expressions represents the same information as "x?n"?

A) B) C) lognx D) logxn

When using a pressure-volume curve to identify optimal PEEP levels, what does the upper in-flection point represent?

a. Point of lung recruitment b. Point of lung over distension c. Optimal PEEP level d. Optimal compliance level