Echo Chapter 4 Review Questions and Answers (2024/2025) Rated A+

Echo Chapter 4 Review Questions and Answers (2024/2025) Rated A+ What is the primary purpose of an echocardiogram? To evaluate the structure and function of the heart using sound waves. What does the term "ejection fraction" refer to in echocardiography? The percentage of blood pumped out of the heart's left ventricle with each contraction. What is the significance of Doppler ultrasound in echocardiography? It is used to measure blood flow velocities and assess the direction of blood flow. How does a transthoracic echocardiogram (TTE) differ from a transesophageal echocardiogram (TEE)? TTE is performed on the chest wall, while TEE involves inserting the transducer into the esophagus for closer heart imaging. What is the normal range for left ventricular ejection fraction (LVEF) in a healthy adult? 55% to 70%. 2 What type of heart condition is commonly diagnosed using an echocardiogram? Valvular heart disease, such as mitral regurgitation or aortic stenosis. What does the term "regurgitation" indicate when seen in an echocardiogram? The backward flow of blood due to improper closure of heart valves. What is the role of color Doppler in echocardiography? It visualizes blood flow and helps detect abnormalities such as valve insufficiency. What is the primary difference between a 2D and 3D echocardiogram? A 3D echocardiogram provides a three-dimensional image, offering more detailed visualization of the heart structures. What can be assessed through an echocardiogram in addition to heart structure? Heart function, including chamber sizes, wall motion, and overall contractility. How does the M-mode echocardiography work? 3 It captures a single-dimensional image of the heart, showing movement over time. What is a possible complication that an echocardiogram can help detect in patients with heart disease? Pericardial effusion, which is the accumulation of fluid around the heart. Why is the assessment of wall motion important in echocardiography? It helps determine if areas of the heart muscle are functioning properly, which is crucial for diagnosing ischemic heart disease. How does an echocardiogram contribute to diagnosing heart failure? By evaluating the ejection fraction and measuring chamber sizes, it helps determine the severity and cause of heart failure. What does the term "stunned myocardium" refer to in echocardiography? A condition where the heart muscle temporarily loses its ability to contract despite being perfused with blood, often seen after a heart attack. How is the left atrium typically visualized during an echocardiogram? 4 It is observed as a large chamber located behind the left ventricle and in front of the right atrium. What is the function of the heart valves, and how