When a person is starving the body compensates for the low intake levels of calories by breaking down muscle. The metabolism increases breaking down high levels of protein found in the muscle. When the liver digests the protein it produces urea as a waste product. The more protein digested the higher the urea levels- so, the longer a person is starved the higher the urea levels will be.
Acidemia (or acidaemia) is a medical condition marked by an abnormally high concentration of hydrogen ions in a person's blood.
oxygen
hypercapnia
Hyperglycemia
Oxygen moves from high concentration in the lungs to low concentration in the blood for delivery to tissues, while carbon dioxide moves from high concentration in the tissues to low concentration in the lungs for removal from the body.
diffusion: particles move from a high concentration to a low concentration
Blood sugar test.
Hyperglycemia.
Oxygen diffuses into the blood in the lungs and binds to the hemoglobin since the oxygen concentration is high and the carbon dioxide concentration is low. The blood is pumped to the body. The hemoglobin releases the oxygen to the tissues because here, the concentration of oxygen is low and that of carbon dioxide is high.
High Blood Pressure
the blood plasma carries waste products, including urea.
The kidney is a filter system for the blood. If the concentration of a substance is too high (i.e. there are drugs in the blood), then the kidney filters all of that out of the blood to form urine.