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.
Keep food in your stomach but not too much. An empty stomach can make nausea worse. Eat several small meals every day instead of three large meals. For morning nausea, eat a small snack (like crackers) before you get out of bed. Allow a few minutes for the snack to digest, then get out of bed slowly.