Mildly elevated blood creatinine does not necessarily lead to decreased glomerular filtration rate, elevated blood creatinine is caused by decreased glomerular filtration rate after kidney damage.
Blood creatinine is a small molecule, mainly produced by the body’s own muscle catabolism and metabolism, and a small portion is ingested by food. Blood creatinine is filtered by the glomerulus and seldom absorbed, so it can be used as an indicator to assess the glomerular rate filtration.
When various reasons lead to kidney damage caused by glomerular filtration rate decrease, beyond the body metabolism blood creatinine limit may appear blood creatinine increase, so the glomerular filtration rate decrease is the cause rather than the result of creatinine increase.
In addition, if a large amount of muscle decomposition or a large amount of meat, creatine and other exogenous creatinine, beyond the normal human glomerular filtration limit can also cause creatinine elevation, but at this time the patient’s glomerular filtration rate is normal.
If the blood creatinine is elevated, it is recommended to go to the hospital in time, under the guidance of specialists to clarify the cause of the disease, and timely symptomatic treatment.