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  1. False. Thoracic CT provides no extra information in the diagnosis of cardiac contusion, but may of course demonstrate and quantify other injuries.

  2. False. CK-MB measurement is irrelevant in the diagnosis of blunt cardiac trauma as up to 7% of skeletal muscle CK may be in the MB isoenzyme.1 As with acute coronary syndromes, serum troponin levels are more cardio-specific, but the ideal timing for measurement is unclear.2

  3. False. Damage to the right ventricle is …

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  • Emergency Medicine Questions (EMQ)
    BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine