89.56歲男性皮膚及鞏膜泛黃,且有茶色尿及灰白便。下列敘述何者正確? (A)..-阿摩線上測驗
1F Chris 大二下 (2018/07/03)
End product of phagocytosing an RBC: unconjugated bilirubin. When the RBC is broken down, you have hemoglobin, and there is an enzyme that splits heme from globin and the globin is broken into aa’s and therefore goes to the aa pool. Then, takes the heme, splits it open, and saves the Fe. Now you have protoporphyrin, and spit it out; end result is unconjugated bilirubin in the macrophage within the spleen. Then, the macrophage spits out the unconjugated bilirubin into blood stream (which is insoluble b/c it’s unconjugated). The unconjugated bilirubin then binds albumin and goes to the ... 查看完整內容 |
2F MORRIS M114 高一上 (2020/06/08)
黃疸(jaundice)是由於Bilirubin代謝障礙而引起血中Bilirubin升高,導致皮膚、鞏膜、黏膜呈現黃色表徵。 89. 56歲男性皮膚及鞏膜泛黃,且有茶色尿及灰白便。下列敘述何者正確? 膽色素一部份會隨腸肝循環回收,另一部分則會經由糞便或尿液排出,使得糞便會有土黃的顏色。 若看到灰白便,則要想到兩個原因: 1.是肝臟製造膽色素不足(肝臟的問題); 2.是膽管阻塞致膽色素不能進入腸道。 又看到有茶色尿,代表肝臟製造之 direct/conjugated 膽色素無法從糞便排出,只能全部由尿液排出,而使尿液呈茶色。
阻塞性黃疸: 根據阻塞的部位可分為肝外膽管阻塞及肝內膽管阻塞: (1) 引... 查看完整內容 |