ARDMS SPI Exam 2022/2023 with complete solutions

Which gain will increase the risk of bioeffects? a. transmit b. receive c. gain d. overall gain a. transmit Which of the following is considered the memory of an ultrasound instrument? a. pulser b. transducer c. receiver d. beam former e. digital scan converter f. display monitor e. digital scan converter 01:05 01:38 Spectral broadening suggest: a. laminar flow b. turbulent flow c. flow away from the transducer d. flow towards the transducer b. turbulent flow With pulse wave Doppler axial resolution: degrades What color is usually use in color flow Doppler variance map to indicate turbulent flow? green Doppler high pass filter eliminates: high amplitude signals; low velocity flow The Doppler wall filter is considered a: high pass filter The Nyquist Limit is equal to: a. propagation speed x frequency b. propagation speed/ wavelength c. PRF/2 d. 4xV^2 c. PRF/2 Multiple echoes, equally spaced originating from a gas bubble is called: a. comet tail b. ring down c. slice thickness artifact d. multipath b. ring down An increase in red blood cell velocity will_____ the Doppler Shift: a. increase b. decrease c. not change d. cannot be predicted a. increase The primary advantage of CW Doppler is: a. range resolution b. range discrimination c. range ambiguity d. range gating e. absence of sampling rate e. absence of sampling rate The range for ultrasound begins: a. 20 Hz b. 20,000 Hz c. 2 MHz d. 15 MHz b. 20,000 Hz (useful frequency range for clinical