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.
Some causes of nausea are not easily prevented. While the cause of your nausea is being determined, you can minimize episodes of nausea by following some basic guidelines: Eat small meals every few hours so your stomach won't feel full. Try to avoid bothersome odors such as perfume, smoke or certain cooking smells.