1) A 70-year-old male patient with a history of obesity is referred for an echocardiogram. Which of the following is a limitation of echography in this patient?

2) In fetal echocardiography, which mode is most commonly used to visualize the motion of the heart valves and walls?

3) Which of the following is NOT an advantage of echography (ultrasound) in clinical diagnostics?

4) A 60-year-old male patient with suspected deep vein thrombosis (DVT) is referred for an ultrasound. Which type of probe is most suitable for imaging superficial structures and vessels?

5) Which mode of echography provides a real-time, two-dimensional image of the internal structures of the body?

6) A patient with suspected deep vein thrombosis (DVT) is referred for an ultrasound. Which echography mode is primarily used to assess blood flow in the veins?