QUESTIONS WITH DETAILED ANSWERS (VERIFIED
ANSWERS) |INSTANT DOWNLOAD PDF
1. What is the primary purpose of vascular ultrasound?
A. Measure bone density
B. Assess blood flow and vessel structure
C. Diagnose lung disease
D. Evaluate muscle strength
*Correct Answer: B – Vascular ultrasound uses sound waves to visualize blood
vessels and evaluate blood flow.
2. Which principle explains how ultrasound images are formed?
A. Refraction
B. Diffraction
C. Reflection
D. Absorption
*Correct Answer: C – Ultrasound images are created from echoes reflected back to
the transducer.
3. What unit is used to measure blood flow velocity?
A. Hertz
B. Meters per second
C. Decibels
D. Joules
*Correct Answer: B – Blood flow velocity is measured in meters per second (m/s).
4. Which vessel carries oxygenated blood away from the heart?
A. Vein
B. Capillary
C. Artery
D. Venule
,*Correct Answer: C – Arteries transport oxygen-rich blood from the heart to
tissues.
5. What is the normal direction of venous blood flow in the legs?
A. Superficial to deep
B. Distal to proximal
C. Proximal to distal
D. Deep to superficial only
*Correct Answer: B – Venous blood normally flows from distal to proximal toward
the heart.
6. Which transducer frequency is best for superficial vessels?
A. 1–2 MHz
B. 3–5 MHz
C. 7–12 MHz
D. Below 1 MHz
*Correct Answer: C – Higher frequencies provide better resolution for superficial
structures.
7. What does Doppler ultrasound primarily measure?
A. Vessel diameter
B. Tissue elasticity
C. Blood flow velocity
D. Blood pressure
*Correct Answer: C – Doppler evaluates the speed and direction of blood flow.
8. Which angle is optimal for Doppler velocity measurements?
A. 0 degrees
B. 30 degrees
C. 60 degrees
D. 90 degrees
*Correct Answer: C – A Doppler angle of 60° provides accurate and consistent
velocity measurements.
, 9. What color indicates flow toward the transducer in color Doppler (default)?
A. Blue
B. Green
C. Red
D. Yellow
*Correct Answer: C – By convention, red indicates flow toward the transducer.
10. Which artifact appears as a mirror image of a vessel?
A. Aliasing
B. Shadowing
C. Mirror image
D. Blooming
*Correct Answer: C – Mirror image artifact occurs due to strong reflectors like the
diaphragm.
11. What is the main cause of arterial stenosis?
A. Infection
B. Atherosclerosis
C. Trauma
D. Congenital defect
*Correct Answer: B – Plaque buildup from atherosclerosis narrows arteries.
12. Which waveform indicates high-resistance flow?
A. Continuous forward flow
B. Triphasic waveform
C. Monophasic venous waveform
D. Turbulent waveform
*Correct Answer: B – Triphasic waveforms are typical of high-resistance arterial
beds.
13. What does PSV stand for?
A. Pulsed Sound Velocity
B. Peak Systolic Velocity