Pressure Gradient is a) product of flow and resistance b) result from arterioles creating resistance c) increased with resistance d) increased with flow e) All of the above

The Reynold’s number in a normal artery should be

Using different frequencies in a bandwidth to create superior images at multiple depths is called

What is the Nyquist limit of of a 5MHz probe with a PRF of 7000Hz

Color flow Doppler uses the technique of

The process of minimizing power to selected elements in a transducer to reduce grating lobes is called

Which of these is/are effect/s of turbulence? a) non-laminar flow b) palpable bruit c) pressure gradient d) eddy currents and vortices

If these images each represent 1 second, which signal has the lower period?

Using different frequencies in a bandwidth to create images at multiple depths is called

The maximum imaging depth during an ultrasound exam is 17 cm. The sonographer adjusts the imaging depth to 8.5 cm. The pulse repetition period is a).unchanged b).halved c)doubled d) increased