Within an hour they can filter 5 liters, the total volume of blood circulating in our veins. They are reliable organ which excreted with urine toxic substances, controlling the concentration of electrolytes in the body and tender supervisor hydration state. Efficiency of a healthy kidney is so large that if you lose the second of them, remained able to meet the needs of the whole blood and maintain all of its functions to the normal range. The kidneys are not indestructible.
A number of factors, both internal and external can work to their disadvantage, causing kidney failure. Kidney diseases are so severe that not only impair the functions of the urinary tract, but also the entire balance of the body's circulatory, in which they are inextricably blended.
When the kidneys begin to get sick
Renal impairment is a condition of their functions to the extent that the physiological compensatory mechanisms are no longer sufficient to maintain their normal function. Kidney diseases are divided about the type of failure in acute and chronic. Acute renal failure is a condition that occurs suddenly, violently and quickly, leading to significant disruptions in the work of the body, including the threat to life.
Salvation in this case can be immediate dialysis, preventing contamination with toxic substances, which in the normal state would be excreted in urine. Chronic kidney failure develops slowly, sometimes completely unnoticed by the patient and the doctor treating him. This type of failure is often accompanied by other diseases and is caused by them.
Causes of renal failure
Acute renal failure can occur in various types of medical emergencies such as: excessive loss of fluids or blood, a large body surface area burns, shock, sepsis, acute myocardial infarction, overdose of drugs that lower blood pressure, arterial occlusion, pelvic tumors, inflammation of the kidney stones attack or any type of toxins showing a strong affinity for the kidneys.
Chronic renal failure is usually caused by chronic glomerulonephritis, pyelonephritis, diabetes, cystic degeneration of the kidney, hypertension, or long-term abuse of analgesics (ibuprofen, naproxen, aspirin).
Symptoms of kidney failure
Improperly functioning kidneys produce symptoms mainly in the form of disturbances in body fluid. The initial phase includes the most common renal secretion of large amounts of urine with a low density, and time and the disease progresses, the amount of urine produced drops dramatically. For characteristic of kidney failure is also in edema, weakness, fatigue, lack of concentration and headaches. Less commonly, there is shortness of breath, anorexia, nausea, vomiting, diarrhea. Long-lasting kidney failure can lead to anemia and anemia.
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