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(A, B) Cardiac arrest, subcostal four-chamber views. These patients had primary cardiac events and presented in PEA with extremely poor left ventricular function. All four-chambers are filled and well visualized, but there is minimal contractility. Source: Chapter 8. Critical Care, Ma and Mateer's Emergency Ultrasound, 3e Citation: Ma O, Mateer JR, Reardon RF, Joing SA. Ma and Mateer's Emergency Ultrasound, 3e; 2014 Available at: http://mhmedical.com/ Accessed: June 11, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved