<prompt> Which of the following statements is true regarding fat embolismMost patients with major trauma involving long bones have urinary fat globulesAll patients with urinary fat globules develop fat embolismPeak incidence of respiratory insufficiency for pulmonary fat embolism is around day 7 after injuryHeparin as an anti coagulant decreases moality and morbidity in fat embolism syndrome  <response>: . Fat embolism is common in fracture of long bones,multiple fractures.It is also observed after intramedullary nailing,liposuction,joint reconstruction,parentral lipid infusion,cardiopulmonary bypass and pathological fractures. Refer page no 194 of SRBs manual of surgery 5 th edition. 