Patient Warfarin indication Target INR(Range) Operation
A  Aortic Valve Replacement 3.5 (3-4) Total Hip Replacement
B AF 2.5 (2-3) Allotransplantation of kidney from cadaver
C Aortic Valve Replacement 3.5 (3-4) Total knee replacement
D Recurrent DVT,PE 4.0 (3.5-4.5) Anastomosis of ileum to colon
E  Aortic Valve Replacement 4.0 (3.5-4.5) Replacement head of femur
F Aortic Valve Replacement 3.5 (3-4) Total abdominal hysterectomy
G DVT 2.5 (2-3) Exploration of renal transplant
Table 1: Patients who bled at surgery.