150. 十九歲的林小姐，最近半年來有微燒、倦怠、及兩手多數關節酸痛。血液常規檢查發現：Hb 9.8 g/dL,
platelet count 86,000/uL, WBC 3450/uL with normal differential count, ESR 11 mm/1hr, CRP＜ 0.5
mg/dL, proteinuria (++)。請問下列的何種檢查對疾病的診斷最有幫助？
(A) Rheumatoid factors
(B) Sonogram of bilateral hands
(C) Autoantibody profile
(D) Viral screen tests
(E) Bone marrow examination
阿摩線上測驗
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