Chapter 7, Problem 60R

For each MEA indicate the exact degrees AND DESCRIBE THEPATHOPHYSIOLOGY OF THINGS that could cause this shift to occur.Calculate the two MEA Values on the Einthoven’s Triangles shown abovewith a ruler that has mm. Show your measurements withlines/calculations/triangulation on your diagrams below. Normal Heart Axis: 0 to 90 degreesLeft Axis Shift Deviation: 0 to 90 degreesRight Axis Shift Deviation: +90 to +120 degrees

Does the first heart sound (lubb) occur before or after the QRS complex and explain why this is the case? (I need descriptions of considering the both possibilities). Your answer should include a description about what the QRS complex represents, whether the relevant heart chamber is contracting or relaxing, the specific valves involved, and how the pressure within the relevant heart chamber determines whether these valves are open or closed. Does the second heart sound (dupp) occur before or after the T wave and explain why this is the case? (I need descriptions of considering both of the possibilities). Your answer should include a description about what the T wave represents, whether the relevant heart chamber is contracting or relaxing, the specific valves involved, and how the pressure within the relevant chamber and vessels determines whether these valves are open or closed. Before the real exam begins, I would really appreciate seeing how these questions could be answered in…