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 Eat small meals throughout the day, or snack on things to keep your stomach from being upset. 2  Avoid overeating, though, and stop when you are full. 3  Avoid spicy or greasy and processed foods such as chips, fried foods, doughnuts, pizza etc. 4  These types of food can make the nausea worse.