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问:为什么某些肝炎和肝炎恢复期血清总胆红素在2mg/dl以上,但尿胆红素阴性? 答:可能有两种情况: 一、血清所增高的胆红素主要是非结合胆红素,不易通过肾小球滤过膜,故尿中胆红素阴性。这最常见于黄疸型肝炎的恢复期和肝炎后高胆红质血症。其主要机制是①肝细胞膜摄取胆红素的y蛋白受损,与白蛋白争夺胆红素的能力下降。结果常常是血清转氨酶已正常,(但肝细胞病变尚未完全恢复,
Q: Why do some of the hepatitis and hepatitis convalescent serum total bilirubin 2mg / dl above, but urinary bilirubin negative? A: There may be two situations: First, the elevated serum bilirubin is mainly non-conjugated bilirubin Su, not easy to filter through the glomerular membrane, so urinary bilirubin-negative. This is most commonly seen in the convalescent jaundice hepatitis and hyperchloraemia after hepatitis. The main mechanism is ① liver cell membrane uptake of bilirubin y protein damage, and albumin competing bilirubin decreased ability. The result is often the serum aminotransferase has been normal (but the liver cell lesions have not yet fully recovered,