Which of the following has proved antithrombotic: (A) Gelatin, (B) Dextran 40, (C) Dextran 100, (D) Hetastarch
Answer is B. refer KDT 6/e p622 Dextran 40 and 70 interferes with coagulation and platelet function and thus prolong bleeding time and so is not used in hyperfibrinogenic ,thrombocytopenia or in presence of bleeding