General Medicine General 0ef93ffe What is the formula for parenteral iron therapy : A 4.4. X body weight (kg) X Hb deficit (g/dl) B 3.3. X body weight (kg) X Hb deficit (g/ dl) C 2.2 X body weight (kg) X Hb deficit (g/dl) D 1.1 X body weight (kg) X Hb deficit (g/dl)