問題詳情

92 一位 17 歲女孩，有經常流鼻血、齒齦易出血，多次月經過多病史。血紅素、血容積比、血小板、白血球皆正常。血小板對 ADP、膠原蛋白、腎上腺素及凝血酶等均無凝集反應，但對瑞斯托菌素（Ristocetin）反應正常。凝血酶原時間（PT）及部分促凝血酶原激酶原時間（aPTT）均無延長。該女孩最可能罹患何症？
(A)瀰漫性血管內凝集（disseminated intravascular coagulation）
(B)革蘭滋慢氏凝集無力症（Glanzmann thrombasthenia）
(C)免疫性血小板缺乏性紫斑（immune thrombocytopenic purpura）
(D)微利布蘭德氏病（Von Willebrand disease）

參考答案

答案：B
難度：適中0.5
統計：A(1),B(5),C(3),D(0),E(0)

用户評論

【用戶】Chris

【年級】高三下

【評論內容】a) Prothrombin time (PT):Evaluates the extrinsic system all the way down to the formation of a clot – so it only deals with 7, 10, 5, 2, and 1. End stage of the test is a clot in the test tube. INR = standardized way of doing it – standardization technique (same everywhere in world).b)  Partial thromboplastin time (PTT):Evaluates the intrinsic system all the way down to a clot – so it deals with 12, 11, 9, 8, 10, 5, 2, and 1.Example: PT is prolonged, but PTT is normal, what is the factor def? 7 B/c the prothrombin was prolonged; this includes 7, 10, 5, 2, or 1.  And the PTT are normal, m...