What is the cause of acute renal failure occur ?

What is the cause of acute renal failure occur ? Recently, many people are consulting this issue. Kidney experts say , from acute renal failure diagnosis and treatment angles , you can cause acute renal failure reasons are divided into three categories.
First, pre-renal AIIP, the main cause prerenal A11P are:
1 effective hypovolemia, common in the gastrointestinal fluid loss ; using diuretics , extensive burns , hypoalbuminemia .
2 heart failure , found in cardiomyopathy, valvular dysfunction , pericardial tamponade .
3 systemic vasodilation , seen sepsis , anaphylaxis, anesthetic accidents, etc. .
Second, post-renal ARF, the leading cause of post-renal ARF include :
1 ureteral stones incarceration .
2 an enlarged prostate .
3 urinary tract injury and after surgery .
4 tumor compression .
Third, renal parenchymal ARF, the leading cause of renal parenchymal ARF are:
An acute tubular necrosis , seen in acute renal ischemia, use of nephrotoxic drugs , heavy metal poisoning, and so on.
2 . Bilateral renal cortical necrosis , seen in placental abruption , severe shock.
3 tubulointerstitial disease , seen in drug-mediated acute allergic reactions, infections and systemic diseases.

4 glomerular disease , leading A11F primary glomerular nephritis rapidly progressive disease after infection nephritis , IgA nephropathy, mesangial proliferative nephritis . Secondary nephropathy such as lupus nephritis, purpura nephritis.