What shall I do with high creatinine level

Creatinine (creatinine, Cr) is a muscle in the human body metabolism product, every 20 g muscle metabolism can produce 1 mg creatinine. Creatinine mainly by the glomerular filtration eliminated from the body. Blood creatinine from exogenous and endogenous two kinds, exogenous creatinine is meat food in the metabolism of the products; Endogenous creatinine muscle tissue metabolism is the body of the product. At the meat food intake are stable. The body's muscles metabolism and no big changes, the generation of creatinine is constant.
Reference for serum creatinine:
· Adult males: 0.8 - 1.4 mg/dl
· Adult females: 0.6 - 1.1 mg/dl
· Children: 0.2 - 1.0 mg/dl
Serum creatinine will differ from country to country, because the machine used is different.
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.
As the kidneys become impaired for any reason, the creatinine level in the blood will rise due to poor clearance of creatinine by the kidneys. Abnormally high levels of creatinine thus warn of possible malfunction or failure of the kidneys. It is for this reason that standard blood tests routinely check the amount of creatinine in the blood.
When creatinine rising, we first thought is how reduce serum creatinine, I think in the lower creatinine, meanwhile, repair the kidney function, the only way we condition won't recurrence.