[Expert Solution]: Paul is 76 years old and has been sedentary…

Paul is 76 years old and has been sedentary since his retirement 10 years ago he has had a persistent productive cough for a few days and has been feeling a little feverish when his daughter comes to visit she notices that his skin looks a bit grayish she is concerned so she takes him to urgent care the healthcare professional makes a medical history and listens to Paul’s lungs he recommends that he had been admitted to the hospital right away because he has pneumonia the healthcare professional tells Paul’s daughter that the air sacks are filling with fluid which is why his skin looks grayish which process is going on in Paul’s lungs