Sample Practice Test for Ultrasound Technician

Sample Practice Test for Ultrasound Technician

The following is a sample test given to sonograph/ultrasound technician students. This material is covered in the material required to graduate from a degree program.

1. The rate of attenuation increases as frequency ______.
a. Increases
b. Decreases

2. In PW Doppler, aliasing is a potential problem because of which of the following:
a. The Doppler sample is sampled rather than recorded continuously
b. The use of high pulse repetition frequencies
c. The motion of the interface perpendicular to ultrasound wave propagation
d. Dynamic focusing

3. Ultrasound is by definition, sound having a frequency greater than _____ cycles per second, which is above the audible range.
a. 10,000
b. 20,000
c. 30,000
d. 40,000

4. When it comes to acoustic waves, which one of the following does not apply?
a. Particles in the medium oscillate with equal excursion in the positive and negative
directions.
b. There is movement of the material.
c. The wave front is attenuated by converting the energy in the pressure wave to heat.
d. Pressure and particle velocity are in-phase.

5. What are the basics of scattering?
a. Acoustic scattering results from objects on the order of a wavelength in size
(representing a rough surface)
b.“Rough” reflectors reflect sound over a range of angles, thus causing loss in amplitude of received echoes.
c. Some organs have a characteristic surface structure that gives rise to a characteristic
scatter signature (useful diagnostically)
d. All of the above

6. Which of the following Doppler techniques do NOT provide range resolution?
a. Power Doppler
b. Pulsed-wave Doppler
c. Color Doppler
d. Continuous-wave Doppler

7. 1 atmosphere (14.7 psi) is equal to:
a. 10kPa
b. 50kPa
c. 75kPA
d. 100kPa

8. Which type of tissue would have the lowest mean propagation velocity?
a. Blood
b. Air
c.Water
d.Fat

9. The ___ transducer and corresponding field of excitation excites molecules in a “pie-shaped” (traditional) field.
a. 1D
b. 2D
c. 3D
d. 4D

10. What type of image is an echogenic one?
a. Produced by an object that transmits most ultrasound waves. It will appear white on
the ultrasound screen.
b. Produced by an object that transmits and reflects ultrasound waves. It will appear gray
on the ultrasound screen.
c.Produced by an object that reflects most ultrasound waves. It will appear white on the
ultrasound screen.
d. Produced by an object that transmits most ultrasound waves. It appears dark or black
on the ultrasound screen.

11. Out of the following factors, which one does not play a role in determining spatial resolution?
a. Transmit intensity
b. Frequency (wavelength)
c. Acquisition
d. Pulse interval

12. In color Doppler, what does the packet size refer to?
a. Pulses required to create one frame
b. Pulses per second
c. Scan lines per unit area
d. Pulse-listen cycles per acoustic scan line

13. What is the mean propagation velocity for human tissue?
a. 330 m*s-1
b. 1540 m*s-1
c. 2440 m*s-1
d. 4080 m*s-1

14. What is an anechoic image?
a. Is produced by an object that transmits and reflects ultrasound waves. It will appear gray
on the ultrasound screen.
b. Is produced by an object that reflects most ultrasound waves. It will appear white on the ultrasound screen.
c.Is produced by an object that transmits most ultrasound waves. It will appear white on the ultrasound screen.
d. Is produced by an object that transmits most ultrasound waves. It appears dark or black on the ultrasound screen.

15. Which of the following refers to a commonly-used process for determining direction in a Doppler instrument?
a. Zero-crossing detection
b. Spectral analysis
c. Phase quadrature detection
d. Autocorrelation