Final Exam DMS 101 2026 – Introduction to Diagnostic Medical Sonography
Comprehensive Study Guide
Reason for using Doppler Ultrasound - correct answer ✔✔ Blood Flow analysis
various blood flow analyses - correct answer ✔✔ Presence or absence of flow
direction of flow
disturbance of flow
tissue characterization
doppler waveform analysis
have high diastolic component and supply organs that need constant perfusion - correct answer
✔✔ Nonresistive Vessels (low resistance)
diastole - correct answer ✔✔ relaxation phase, right atrium fills with blood from IVC
systole - correct answer ✔✔ contraction phase, Left ventricle pumps blood to the aorta
Examples of Nonresistive vessels - correct answer ✔✔ Internal Carotid Artery
Hepatic Artery
Renal Artery
Examples of Resistive Vessels - correct answer ✔✔ External Carotid Artery
Iliac Artery
Brachial Artery
, have very little or even a reversed flow in diastole and supply organs that do not need a
constant blood supply - correct answer ✔✔ Resistive Vessels (High Resistance)
Resistive Index - correct answer ✔✔ Peak systole is compared with minimum diastole to
quantify vessel's degree of impedance
In spectral display, x on horizontal axis - correct answer ✔✔ time
In spectral display, y on vertical axis - correct answer ✔✔ Doppler shift frequency (velocity)
In spectral display, z gray scale - correct answer ✔✔ quantity of blood flowing at any given
velocity
in spectral display, a positive shift above the baseline indicates - correct answer ✔✔ blood flow
moving toward the transducer
in spectral display, a negative shift below the baseline indicates - correct answer ✔✔ blood flow
moving away from the transducer
in spectral display, a brighter gray scale (z) indicates - correct answer ✔✔ presence of more red
blood cells
PSV - correct answer ✔✔ peak systolic velocity
peak systolic velocity - correct answer ✔✔ highest point on spectral display
EDV - correct answer ✔✔ End Diastolic Velocity
Comprehensive Study Guide
Reason for using Doppler Ultrasound - correct answer ✔✔ Blood Flow analysis
various blood flow analyses - correct answer ✔✔ Presence or absence of flow
direction of flow
disturbance of flow
tissue characterization
doppler waveform analysis
have high diastolic component and supply organs that need constant perfusion - correct answer
✔✔ Nonresistive Vessels (low resistance)
diastole - correct answer ✔✔ relaxation phase, right atrium fills with blood from IVC
systole - correct answer ✔✔ contraction phase, Left ventricle pumps blood to the aorta
Examples of Nonresistive vessels - correct answer ✔✔ Internal Carotid Artery
Hepatic Artery
Renal Artery
Examples of Resistive Vessels - correct answer ✔✔ External Carotid Artery
Iliac Artery
Brachial Artery
, have very little or even a reversed flow in diastole and supply organs that do not need a
constant blood supply - correct answer ✔✔ Resistive Vessels (High Resistance)
Resistive Index - correct answer ✔✔ Peak systole is compared with minimum diastole to
quantify vessel's degree of impedance
In spectral display, x on horizontal axis - correct answer ✔✔ time
In spectral display, y on vertical axis - correct answer ✔✔ Doppler shift frequency (velocity)
In spectral display, z gray scale - correct answer ✔✔ quantity of blood flowing at any given
velocity
in spectral display, a positive shift above the baseline indicates - correct answer ✔✔ blood flow
moving toward the transducer
in spectral display, a negative shift below the baseline indicates - correct answer ✔✔ blood flow
moving away from the transducer
in spectral display, a brighter gray scale (z) indicates - correct answer ✔✔ presence of more red
blood cells
PSV - correct answer ✔✔ peak systolic velocity
peak systolic velocity - correct answer ✔✔ highest point on spectral display
EDV - correct answer ✔✔ End Diastolic Velocity
