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.
What to eat if you're nauseated: 1  Eat poultry or soy. 2  Eat dry foods, such as crackers, toast, dry cereals, or bread sticks, when you wake up and every few hours during the day. 3  Eat cool foods instead of hot, spicy foods.  Don't eat foods that are very sweet, greasy, or fried.