ARDMS SPI Exam Multiple Choice Questions WITH COMPLETE SOLUTIONS

Which gain will increase the risk of bioeffects? a. transmit b. receive c. gain d. overall gain CORRECT ANSWERS: 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 CORRECT ANSWERS: e. digital scan converter Spectral broadening suggest: a. laminar flow b. turbulent flow c. flow away from the transducer d. flow towards the transducer CORRECT ANSWERS: b. turbulent flow With pulse wave Doppler axial resolution: CORRECT ANSWERS: degrades What color is usually use in color flow Doppler variance map to indicate turbulent flow? CORRECT ANSWERS: green Doppler high pass filter eliminates: CORRECT ANSWERS: high amplitude signals; low velocity flow The Doppler wall filter is considered a: CORRECT ANSWERS: high pass filter The Nyquist Limit is equal to: a. propagation speed x frequency b. propagation speed/ wavelength c. PRF/2 d. 4xV^2 CORRECT ANSWERS: 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 CORRECT ANSWERS: b. ring down