In renal parenchymal disease, acute glomerular disease, vasculitis, renal vascular disease can cause acute renal failure. Acute glomerular disease is the most common cause of acute renal failure, the first clinical distinction with acute tubular necrosis. The former causes no acute tubular necrosis of the risk factors, with more significant proteinuria, 24-hour urinary protein excretion in more than 2 grams, urine sediment visible a variety of shaped red blood cells, a variety of tube type, in oliguria at the same time often concurrent hypertension, edema. When acute renal failure is defined as acute glomerular disease caused by, that should be further ruled out secondary glomerular diseases such as lupus nephritis, systemic necrotizing vasculitis, Henoch-Schonlein purpura and other later to be diagnosed as primary acute Glomerular diseases such as acute glomerulonephritis and acute glomerulonephritis. In addition, some microvascular diseases such as hemolytic uremic syndrome, malignant hypertension, postpartum acute renal failure can also cause acute renal failure. Occasionally acute renal macrovascular disease such as bilateral acute renal vein thrombosis and bilateral renal artery thrombosis or embolism can cause acute renal failure syndrome. The former by the tumor, kidney injury or severe dehydration and other causes. Often associated with severe back pain and gross hematuria, intravenous pyelography and CT can help diagnose. The latter can be seen in heart valve disease such as bacterial endocarditis or due to shedding of atherosclerotic plaque due to embolization of the renal artery. Patients can be expressed as complete anuria and low back pain, both lung, brain and other organ embolism, isotope nephropathy, renal artery angiography can help diagnose.
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