Page 67 - Demo

MCQ 4: Post-fracture ComplicationScenario:A 65-year-old woman is admitted with a fractured neck of femur following a fall. 48 hours after admission, she becomes acutely short of breath, confused, and develops a petechial rash on her chest. What is the most likely diagnosis?A.Pulmonary embolismB.PneumoniaC.Fat embolism syndromeD.Acute coronary syndromeE.Delirium tremensAnswer:Fat embolism syndromeExplanation:This scenario describes the classic triad of fat embolism syndrome: respiratory distress, neurological symptoms (confusion), and petechial rash. Fat embolism syndrome typically occurs 24-72 hours after a long bone fracture, particularly fractures of the femur. The fat globules released from the bone marrow enter the bloodstream, causing systemic effects. While pulmonary embolism can also cause shortness of breath, it wouldn't explain the rash or the timing of symptoms. The other options are less likely given the clinical picture and timing relative to the fracture.