A patient shows up in the emergency room on a 50% venturi ma…

A patient shows up in the emergency room on a 50% venturi mask with a RR of 28, HR of 104 an SPO2 of 99% and a blood gas as follows.                           pH 7.48, pCO2 31, paO2 205, HCO3 25, Be +1 and SaO2 of 80%The next step the therapist should take is:

Which of the following statements is true about the effects…

Which of the following statements is true about the effects of aging on the pulmonary system?1. Alveolar septa gradually deteriorate.2. The number of alveoli gradually decreases.3. Loss of alveolar walls reduces the surface area for gas exchange.4. Smooth muscle fibers in the lungs are progressively replaced with fibrous connective tissue.