The vertical axis on the m-mode display represents the ___________.

For a single transducer to offer multiple frequency selections for scanning, it must have _________

While performing a Doppler ultrasound examination, you adjust the pulse repetition frequency to 12 kHz. This can also be expressed as ___________

One hundred Forty (140) patients each one had 2 venous studies for Acute Deep Venous Thrombosis, non-invasive (new test) and invasive (gold standard). No evidence of disease was detected in 54 patients. In 12 cases the non-invasive studies were negative, but the invasive tests were positive. 68 patients showed Acute DVT by both tests. In 6 cases the non-invasive studies were positive, but the invasive studies were negative. The number of True Positive is ______

Which interface will cause the maximum reflection of the incident sound beam?

Which of the following is a commonly recommended ingredient in disinfectants for intracavitary probes?

All of the following affect spatial resolution EXCEPT

With a high Reynolds number you would expect to see ____.

Which of the following is the best and most appropriate action of a sonographer for infection control?

Linear phased array scanners need no form of mechanical focusing because focusing is performed electronically.