This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
D_Dimer is the most sensitive diagnosis test for 
Select and explain. 
A. Pulmonary embolism, B. Acute pulmonary oedema, C. Cardiac tamponade, D. Acute myocardial infraction
A: Pulmonary embolism
Answer: A: Pulmonary embolism 
Explanation: Ref Robbins 9/e p127 D-Dimer ia a fibrin degradation product ,a small protein fragment present in blood after a blood clot is degraded by fibrinolysis,it is so named because it contains 2crosselinkedDFragments of fibrinogen protein