This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
[{'content': 'Diagnostic test for Disseminated Intravascular coagulation is: September 2011 \nSelect and explain. \nA. PT, B. D-Dimer assay, C. APTT, D. BT', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B: D-Dimer assay The D dimer immunoassay, which measures cross-linked fibrin derivatives (i.e. those that have been in blood clots), is a more specific FDP (fibrin degradation products) assay', 'role': 'assistant'}]