3. Jacob, a 45 year old patient weighing 60 kg is suffering from fever, headache, myalgia, abdominal pain and black tarry stools for 3 days. His platelet count is found to be 40000/ cu.mm and heamatocrit raised more than 25% compared to previous result.  Calculate the amount of fluid to be given to this patient? What are the indications for blood transfusion?