ARDMS SPI EXAM LATEST REAL EXAM 150 QUESTIONS AND CORRECT ANSWERS|AGRADE

ARDMS SPI EXAM LATEST 2023 -2024 REAL EXAM 150 Q UESTION S AND CORRECT ANSWERS|AGRADE Multiple echoes, equally spaced originating from a gas bubble is called: a. comet tail b. ring down c. slice thickness artifact d. multipath Correct Answer: 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 Correct Answer: 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 Correct Answer: e. absence of sampling rate The range for ultrasound begins: a. 20 Hz b. 20,000 Hz c. 2 MHz d. 15 MHz Correct Answer: b. 20,000 Hz (useful frequency range for clinical imaging is 2MHz -10MHz) Which instrument control affects the amplitude (dB) of the outgoing signal: a. gain b. receiver gain c. TGC d. transmit gain e. overall gain Correct Answer: d. transmit gain; amplitude can be affected by the sonographer Which of the following is used to convert Doppler shift information into color: a. high PRF b. fast Fourier transform c. autocorrelation d. time interval histogram Correct Answer: c. autocorrelation