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.
To prevent nausea. 1  Avoid substances or activities known to produce nausea, such as drinking alcohol. 2  Nausea after eating can be prevented by eating in moderation and not over-eating. 3  For motion sickness due to riding in a boat or automobile, it is often helpful to focus on a stationary object on the horizon.