73.下列何者表示體內有足夠iron，能確保erythropoietin的效果？〔註：%TSAT＝serum iron (μg/dL)/TIBC (μg/dL)×100；TSAT: transferrin saturation percent; TIBC: total iron-binding capacity〕
A.TSAT＞30%，且serum ferritin＞500 ng/mL
B.TSAT＜15%，且serum ferritin＜100 ng/mL
C.serum iron＞30 μg/dL，且TIBC＞500 μg/dL
D.serum iron＜15 μg/dL，且TIBC＜100 μg/dL
答: A
解答：參照Applied Therapeutics: The Clinical Use of Drugs (11 Edition)
Chapter 28 Chronic Kidney Disease
IRON STATUS Section – 評估體內是否有足夠iron的兩個指標為transferrin saturation percent (TSAT, 攜鐵蛋白飽和度)和serum ferritin(血清鐵蛋白)
transferrin saturation percent (TSAT)正常值: 20-50% (參考)
serum ferritin正常值: 10–300 ng/ml(參考)
故答案選A
