Sounds like the client is dealing with Dehydration.
Carbon dioxide, and Sulfur dioxide, because you have to know what gas are very dangerous and which ones arent........
Answer:
The function of the digestive system is digestion and absorption. Digestion is the breakdown of food into small molecules, which are then absorbed into the body. The digestive system is divided into two major parts: The digestive tract (alimentary canal) is a continuous tube with two openings: the mouth and the anus.