<prompt> In limb what amount of pressure is applied to prevent venum migration in snake bite10 mm of Hg20-30 mm of Hg40-70 mm of Hg100 mm of Hg  <response>: Pressure immobilisation technique: A bandage is applied over the wound which is loose enough to fit one finger in. The pressure of bandage should be maintained in 50-70 mm Hg. This procedure Sutherland wrap is to occlude the lymphatic circulation without impeding the aerial or venous flow. Ref: FORENSIC MEDICINE AND TOXICOLOGY DR PC IGNATIUS THIRD EDITION PAGE 520 