<prompt> One unit of fresh blood rises the Hb concentration by:0.1 gm1 gm2gm2.2 gm  <response>: In general for a stable, euvolemic adult patient, the transfusion of 1 unit of packed cells raises the hemoglobin concentration by 1gdl. Ref: Fundamentals of Surgical Practice By Andrew Kingsnoh, Douglas Bowley, 3rd Edition, Page 234; Bailey and Loves Sho Practice of Surgery, 24th Edition, Page 62. 