ARDMS SPI QUESTIONS AND ANSWERS | GRADED A+

One reason why focused beams with low intensities are less likely to cause bioeffects is that a focused beam is less efficient in heating a large mass of tissue to a critical temperature. correct answerTrue Typically, the sonographer can adjust the compression function of a receiver. correct answerTrue Mean frequency is calculated from weighted sum of frequencies in the power spectrum. correct answerTrue Refraction always occurs at the interface between two media when the propagation speeds of the media are unequal? correct answerFalse - 1. oblique incidence 2. unequal propagation speed The shorter the pulse length the better the picture quality. correct answerTrue The synchronous signal processing in angiodynorgraphy uses a Doppler carrier frequency that is the same as the imaging center operating frequency. correct answerTrue The period of the wave is inversely proportional to the wavelength. correct answerFalse - Reciprocal