Kidney diseases evolve silently. Hence the importance of regularly performing blood and urine tests to check that his kidneys are working well. What are the different renal function parameters that appear on the test results? And what is the use of over-the-counter urinary strips in pharmacies?
The man being endowed with two kidneys, one can fall sick without being aware of it. This poorly known organ has the main function of eliminating the waste present in our blood. How to know if it works well? How to spot the first signs of kidney failure?
Although we rarely worry about it, our kidneys are just as important as our heart or our lungs. They are, in a way, the "treatment plant" but also the regulation of the human body: their main function is to eliminate waste in our blood. Every minute, about a litre of blood reaches the kidneys to be purified, before coming out and going back into the general circulation.
How can I know if I have kidney disease?
In general, kidney disease in its initial stage has no symptoms. The only way to know how well your kidneys are working is to be tested. Have a kidney function test if you suffer from:
- High blood pressure
- Heart disease
- Family history of kidney failure
If you have diabetes, get checked every year. If you suffer from high blood pressure, heart disease, or have a family history of kidney failure, talk with your doctor about how often you should be evaluated. The sooner you know that you have kidney disease, the sooner you can get treatment to help protect your kidneys.
Doctors assess renal functionality by analyzing blood and urine samples.
When the rate of renal filtration decreases markedly, the concentration of creatinine (a waste product) in the blood increases. The clearance or clearance of creatinine (a more accurate test) is established from a blood sample using a formula that relates the value of blood creatinine to the person's age, weight, and sex. In order to determine creatinine clearance more accurately, it is necessary to plan in detail the timing of urine collection with respect to blood creatinine determination.
The cystatin C, a protein of the blood, is also sometimes measured as an indicator of renal function. The concentration of urea nitrogen in blood (BUN, BUN for short) can also indicate the efficiency of kidney function, but many other factors can alter the concentration.
EVALUATION OF RENAL FUNCTION EVEN AFTER DIAGNOSIS
DTPA renal scan should be performed periodically even after diagnosis, for disease control. Those most in use are urinary creatinine, to estimate any worsening of renal disease, urinary nitrogen and sodium, the Emogas Analysis, and the so-called BNP examination (Type B Natriuretic Peptide).
The latter serves to assess the person's state of hydration and its variations over time. It is very useful for monitoring the health of the nephropathy. By periodically checking the progress of kidney failure and following the advice of one's doctors with rationality, it is possible to slow down the course of the disease, maintaining a satisfying lifestyle.