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FIN 2601 EXAM PACK 2022, UNISA

MNB 1501 Full Study Pack, UNISA

PYC 3703 test bank of over 500 questions and answers, UNISA

PYC 3704 Previous Exam and Assignment Answers, UNISA

MNB 1501 Full Study Pack, UNISA

FMT 3701 Exam Pack, UNISA

We know ultrasound is safe because a large randomised controlled trial has been undertaken. False The rate at which ultrasound passes through a unit area is called ... Intensity A bioeffect is... A physical or mechanical change caused by exposure to ultrasound As ultrasound passes through tissue, some of its energy is lost due to absorption of ultrasound energy. This results in a... Heating of the tissues Heating of tissues using ultrasound causes... Thermal bioe...

The Doppler shift frequency is directly proportional to the velocity of the reflector If the media boundary is moving toward the source, the reflected sound wave will have higher frequency than the incident frequency If the media boundary is moving away from the source, the result will be lower frequency than incident frequency Continuous wave Doppler uses how many piezoelectric elements 2 The greatest Doppler angle is achieved When the beam strikes the vessel at...

Frame rate is The number of images that can be aquired and displayed each second. Harmonics are most prominent in which part of the beam? The centre. The number of scan lines per frame and the PRF determine the actual frame rate... True What is the maximum frame rate of the scan range in 15cm and the 150 lines compose each frame 34fps Which harmonic component is most commonly used in ultrasound The second harmonic If an ultrasound machine is transmitted at...

PVL 2602 - MCQ Test Bank (2022), UNISA