The kidneys maintain the blood creatinine in a normal range. Creatinine has been found to be a fairly reliable indicator of kidney function. Elevated creatinine level signifies impaired kidney function or kidney disease.
If you feel nauseated, here are some tips: 1  Avoid foods that are hard to digest. 2  If the smell of hot food makes you feel ill, try eating cool or cold meals. 3  Eat six small meals each day instead of three large ones. 4  Do not lay down after eating. 5  Rest with your head higher than your feet.
1 Drink water, sports drinks, or broths. 2  Juices and soft drinks should be avoided. 3  Eat as tolerated, but only light, bland foods, such as crackers or plain bread to begin with. 4  If your nausea is chronic, you'll need to find a variety of vegetables and proteins that don't upset your stomach to maintain proper nutrition.