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 trying to control nausea: 1  Drink clear or ice-cold drinks. 2  Eat light, bland foods (such as saltine crackers or plain bread). 3  Avoid fried, greasy, or sweet foods. 4  Eat slowly and eat smaller, more frequent meals. 5  Do not mix hot and cold foods. 6  Drink beverages slowly. 7  Avoid activity after eating.