<prompt> True about fat embolism -a Seen one week after injuryb Patechiec Bradycardiad Tachycardiae incidence in multipleabcbdeacebce  <response>: Clinical features are evident within 1-3 days. About 25 percent of patients develop symptoms within 12 hours and 75 percent within 36 hours.Early warning signs are a slight rise in temperature pyrexia and tachycardia.The classical triad of fat embolism syndrome is :-i Respiratory symptoms : Dyspnea, tachypnea, cyanosis, ARDS, low PO2.ii Neurological symptoms : Confusion, disorientation, restlessness, irritation, delirium, convulsion, coma.iii Petechial rach : In axilla, neck, periumblical area, conjunctiva of lower lid, retina, front beck of chest, shoulder. 