Which gain will increase the risk of bioeffects? a. transmit b. receive c. gain d. overall gain Correct Answer: 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 Answer: 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 Answer: b. turbulent flow With pulse wave Doppler axial resolution: Correct Answer: degrades What color is usually use in color flow Doppler variance map to indicate turbulent flow? Correct Answer: green Doppler high pass filter eliminates: Correct Answer: high amplitude signals; low velocity flow The Doppler wall filter is considered a: Correct Answer: 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 Answer: c. PRF/2