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.
You should avoid solid foods and dairy products until the vomiting and diarrhea have passed. Once you are feeling better, ease into eating and drinking again. Try bland foods, such as crackers, toast and bananas. Avoid spicy foods, fried foods, dairy and foods that are high in fat and sugar.