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Apical 4-chamber (A4) Apical 4 Chamber view demonstrating the right ventricle (RV), right atrium (RA), left ventricle (LV) and left atrium (LA). Note the vertical orientation of the septum #Clinical #EM #Cardiology #POCUS #Apical #A4 #ApicalFourChamber #FourChamber #ALiEM