Which of the following is an individual test component within a given test panel?

A patient is receiving 0.60 FIO2 with a barometric pressure of 755 mm Hg. PCO2 is 56 mm Hg and PaO2 65 mm Hg. The PAO2 for this patient is _____ mm Hg

a. 265.6 c. 354.8 b. 300.9 d. 404.0

A mechanically ventilated pediatric patient in the process of being weaned is switched to PC-IMV with PS. The respiratory therapist notes that every PS breath is being time cycled. The most likely cause of this is which of the following?

a. The PS setting is too high. b. The flow cycle setting is too low. c. This is the normal cycle for PS. d. A large leak is present around the cuffless ET tube.