Creatinine clearance is a test performed to evaluate renal function by taking an orin sample for 24 hours and a blood test, once the results are obtained, the concentration of creatinine present in this orin sample is compared with the concentration in the blood.
This test is usually requested by your doctor if your blood creatinine concentration changes, when there is a high concentration of protein in your urine when there are symptoms that indicate kidney or heart disease. In addition, creatinine clearance may also be requested to track the evolution of certain diseases such as congestive heart failure and chronic kidney failure, for example.
Learn more about creatinine
The reference values for creatinine clearance are:
When the value of creatinine clearance is due to its normal values, it may indicate the existence of a kidney, heart problem, which is done by the person on a low-meat diet, as could happen in a vegan or vegetarian person, for example.
Creatinine clearance may also increase for embarrassed women, after physical activity when the person consumes large amounts of meat.
To remove creatinine, an orin sample should be taken for 24 hours and a blood test should be performed before the sample can be taken before taking the orin sample. The blood collected and the orin were sent to the lab to determine the level of creatinine in both cases, according to the 24-hour urine test.
The creatinine clearance value is calculated using a mathematical formula that is considered, in addition to the concentration of creatinine in the blood and blood, weight, age and sex of each person.
There is not yet a specific preparation for this test, some labs recommend an 8-hour test to avoid meat consumption, which increases creatinine levels in the body.
This test is requested by your doctor when there is excess creatininin in your blood or elevated concentrations of protein in your ear, also called proteinuria, and when symptoms may indicate kidney problems, such as:
Swelling in the face, puos, thighs and ankles;
Urine purged the moss;
He highlighted the decrease in urine canteen;
Constant pain in the kidney region
This test is also regularly requested, in case of kidney disease, to assess the degree of progression of the disease and to know the level of functioning of the kidneys.