Cardiac Sonography Questions with Correct Answers

Overriding aorta associated with? Correct Answer 1. Pseudotruncus-Pulmonary atresia with a VSD 2. Tetralogy of Fallot 3. Truncus Arteriosus 4. Double Outlet RV NOT-Pulmonary Atresia with Intact Ventricular Septum In a normal newborn the RV free wall is? Correct Answer 2 to 4mm thick Phased array images are produced by? Correct Answer Sequentially activating a series of crystals to angulate the ultrasound beam Eustachian Valve? Correct Answer Normal valve of the IVC commonly seen in the subcostal view To improve axial resolution? Correct Answer Manufacturer does this by shortening the pulse Axial Resolution= SPL divided by 2 What is Doppler Shift? Correct Answer The DIFFERENCE between the transmitted and received frequencies Myocardial blood flow returns to the RA via? Correct Answer The coronary sinus Phased Array beam steering is achieved by? Correct Answer Varying the timing of pulses to the transducer elements Higher frequencies do what? Correct Answer Attenuate and scatter more than lower frequencies Grade 4/5 Systolic Crescendo Decrescendo Murmur. What would be suspected? Correct Answer Aortic Stenosis Features of LV aneurysms? Correct Answer -thin walls -Usually involve LV apex -Thrombus frequently present -Requires multiple views for evaluation -Increase in size in systole What does amyl nitrite do to HOCM? Correct Answer Worsens it makes the SAM increase