Question: A patient goes to the hospital for a myocardial infarction with ST segment elevation. Upon arrival, he is hypotensive, presents crackles and a systolic murmur is heard 3/6. What is your diagnostic suspicion? 
 Options:  <1> Cardiogenic shock. <2> Rupture of free wall of left ventricle. <3> Acute mitral failure due to papillary muscle rupture. <4> Cardiac tamponade. <5> Thrombosis of the common trunk.
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