44. 下列關於Pulmonary embolism (PE) 敘述何者錯誤 (A) D-dimer (＜500ng/ml) 對PE的診斷有high negative predictive value (B) B-type natriuremic peptide在acute PE常會升高，對PE的診斷有high specificity (C) CT pulmonary angiography可以detect到sixth order branch的embolism (D) Low molecular weight heparin可以取代UF-heparin做PE的first line therapy