Answer: A
Explanation: The blood–air barrier (alveolar–capillary barrier or membrane) exists in the gas exchanging region of the lungs. It exists to prevent air bubbles from forming in the blood, and from blood entering the alveoli. ... The barrier is permeable to molecular oxygen, carbon dioxide, carbon monoxide and many other gases.
The answer is, The Current Procedural Terminology (CPT®) code reported is 69631 under repair procedures on the middle ear.<span> Surgery does not improve the hearing. The aim of the surgery is to heal the perforations to prevent infection from contaminated water.</span>
I would have to say either B or C.. I am leaning more towards C though.. hope this helps a little
An adjustment disorder<span> is an illness which takes place when person undergoing something heavy is unable to cope up with the accompanied stress of that particular major event. The answer to this statement is that this is false becaue adjustment disorders greatly affects your life. </span>