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.
When and how to eat if you're nauseated: 1  Eat small meals frequently. 2  Eat food cold or at room temperature, not hot, to reduce its smell and taste. 3  Don't eat in a warm room. 4  Rinse your mouth before and after meals. 5  Sit up or lie back with your head raised for at least an hour after eating if you need to rest.