Often encountered in the clinic routine urine occult blood positive people, usually without any symptoms. The subjects were often very nervous that he was suffering from nephritis. Some people even went so far removed for treatment, wasting a lot of time and effort. In fact, this view is very one-sided.
Generally contain more red blood cells in the urine, known as hematuria. Hematuria main cause urinary system diseases, systemic diseases, urinary tract diseases, and other causes of adjacent tissue. Generally believed that the most common is the urinary system diseases, among glomerular diseases, stones, infections and tumors are more common.
Occult blood when urine, but no red blood cell microscopy, often there are two cases. Said case containing free hemoglobin in the urine, known as hemoglobinuria. Another situation urine contains large amounts of myoglobin, called myoglobinuria.
The clinical significance of urine occult blood test is mainly to identify hemoglobinuria, and its positive does not mean that if suffering from nephritis. Blood transfusion reactions are generally incompatible, beans disease, paroxysmal hemoglobinuria, malaria, extensive burns and inflammation caused by certain drugs or poisons such as urine occult blood can be positive. Hemoglobinuria may arise when the onset of hemolytic anemia. In addition, patients with paroxysmal nocturnal hemoglobinuria and hemoglobinuria patients allergic attack can be positive.
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