A 22 year old male is admitted with fracture of the left femur. Two days later, he becomes mildly confused, has a respiratory rate of 40/min and scattered patechial rash on his upper torso. Chest X-ray shows patchy alveolar opacities bilaterally. His aerial blood gas analysis is abnormal. The most likely diagnosis is: (A) Cerebral oedema with early neurogenic pulmonary oedema, (B) Pulmonary thrombo-embolism, (C) Chest contusion, (D) Fat embolism
Answer is D. D i.e. Fat embolism