Answers
Demodulation is only necessary when -
correct answer ✅a television monitor is used to display the image
What transducer frequency can be used for imaging or therapeutic
purposes -
correct answer ✅3MHz
What is the difference between spatial compounding and
persistence? -
correct answer ✅The imaging angle is varied between frames with
spatial compounding, while persistence averages data obtained
from frames obtained at the same angle
A transducer frequency increases -
correct answer ✅axial and lateral resolution will improve
Ultrasound can be potentially harmful to a fetus if the examination
raises the temperature in the womb to a temperature greater than
__________ Celsius -
correct answer ✅41 degrees
,SPI Mock RE C23 Exam Questions And
Answers
Which of the following best describes the best way to identify an
unconscious patient?
A. verify that the name on the chart matches the name on the
order
B. ask the patient to give you their medical record number
C. ask the patient to give you their birthdate
D. check the hospital wristband on the patient's arm -
correct answer ✅D. check the hospital wristband on the patient's
arm
Resistive index is a ratio utilized to quantify what? -
correct answer ✅Resistance flow
The Doppler shift is zero when the angle between the incident
beam and the flow direction is -
correct answer ✅90 degrees
What two things are necessary for refraction to occur? -
correct answer ✅oblique incidence of the beam & two media with
different propagation speeds
, SPI Mock RE C23 Exam Questions And
Answers
what describes a normal doppler waveform of an artery from the
lower extremity correctly -
correct answer ✅the triphasic waveform will have two
components of antegrade flow during the cardiac cycle
A 7MHz transducer emits a range of frequencies between 4MHz
and 10MHz. What is the bandwidth of the transducer? -
correct answer ✅6MHz
What will increase the display of Color Doppler information on the
image of a superficial mass? -
correct answer ✅increased probe frequency
What is a correct statement describing the guidelines for wearing a
mask? -
correct answer ✅1.Wash your hands
2.tie the upper strings over your ears toward the top of your head
and bottom strings behind your neck
what technique uses the highest intensity beam? -
correct answer ✅PW Doppler