ARDMS RVT Certification Exam 2026: Comprehensive Vascular
Sonography Practice Test — Vascular Anatomy, Hemodynamics,
Doppler Physics, Arterial & Venous Pathology, Duplex Ultrasound &
Diagnostic Interpretation — 190 Multiple-Choice Questions with
Answers & Detailed Rationales
Section 1: Normal Anatomy, Perfusion, and Function (40 Questions)
Question 1
Which arterial layer primarily regulates vessel diameter through smooth muscle contraction?
A. Tunica intima
B. Tunica media
C. Tunica adventitia
D. Tunica externa
Correct Answer: B
Explanation: The tunica media contains smooth muscle and elastic fibers that control
vasoconstriction and vasodilation. The intima is the endothelial lining, and the adventitia is
supportive connective tissue.
Question 2
A healthy internal carotid artery spectral waveform demonstrates which characteristic?
A. High-resistance pattern with diastolic flow reversal
,B. Low-resistance pattern with continuous diastolic flow
C. Triphasic pattern with a brief reverse component
D. Monophasic pattern with absent diastolic flow
Correct Answer: B
Explanation: The ICA supplies the low-resistance cerebral vascular bed, producing
continuous forward diastolic flow. High-resistance patterns are typical of external carotid or
peripheral arteries.
Question 3
Which vessel arises directly from the subclavian artery and contributes to posterior cerebral
circulation?
A. External carotid artery
B. Vertebral artery
C. Internal carotid artery
D. Thyrocervical trunk
Correct Answer: B
Explanation: The vertebral arteries originate from the subclavian arteries bilaterally and join
to form the basilar artery. They supply the posterior circulation.
Question 4
The temporal tap maneuver is performed to identify which vessel?
,A. Internal carotid artery
B. Vertebral artery
C. External carotid artery
D. Common carotid artery
Correct Answer: C
Explanation: Temporal tap produces oscillations in the ECA waveform via its superficial
temporal branch. This helps distinguish ECA from ICA during carotid duplex.
Question 5
Which of the following correctly describes the normal spectral waveform of the common
carotid artery?
A. Pure low-resistance pattern identical to the ICA
B. Pure high-resistance pattern identical to the ECA
C. Intermediate pattern between ICA and ECA characteristics
D. Retrograde flow during systole
Correct Answer: C
Explanation: The CCA waveform reflects a blend of both ICA and ECA contributions. It
demonstrates forward flow throughout the cardiac cycle with a broader systolic peak than
the ECA.
Question 6
The popliteal artery is a direct continuation of which vessel?
, A. Common femoral artery
B. Superficial femoral artery
C. Deep femoral artery
D. External iliac artery
Correct Answer: B
Explanation: The superficial femoral artery continues through the adductor canal and
becomes the popliteal artery after passing the adductor hiatus. The deep femoral artery
branches off the common femoral.
Question 7
Which artery is the primary supplier of blood to the anterior compartment of the lower leg?
A. Posterior tibial artery
B. Peroneal artery
C. Anterior tibial artery
D. Popliteal artery
Correct Answer: C
Explanation: The anterior tibial artery passes through the interosseous membrane to supply
the anterior compartment. It continues as the dorsalis pedis artery.
Question 8
The dorsalis pedis artery is a continuation of which vessel?
Sonography Practice Test — Vascular Anatomy, Hemodynamics,
Doppler Physics, Arterial & Venous Pathology, Duplex Ultrasound &
Diagnostic Interpretation — 190 Multiple-Choice Questions with
Answers & Detailed Rationales
Section 1: Normal Anatomy, Perfusion, and Function (40 Questions)
Question 1
Which arterial layer primarily regulates vessel diameter through smooth muscle contraction?
A. Tunica intima
B. Tunica media
C. Tunica adventitia
D. Tunica externa
Correct Answer: B
Explanation: The tunica media contains smooth muscle and elastic fibers that control
vasoconstriction and vasodilation. The intima is the endothelial lining, and the adventitia is
supportive connective tissue.
Question 2
A healthy internal carotid artery spectral waveform demonstrates which characteristic?
A. High-resistance pattern with diastolic flow reversal
,B. Low-resistance pattern with continuous diastolic flow
C. Triphasic pattern with a brief reverse component
D. Monophasic pattern with absent diastolic flow
Correct Answer: B
Explanation: The ICA supplies the low-resistance cerebral vascular bed, producing
continuous forward diastolic flow. High-resistance patterns are typical of external carotid or
peripheral arteries.
Question 3
Which vessel arises directly from the subclavian artery and contributes to posterior cerebral
circulation?
A. External carotid artery
B. Vertebral artery
C. Internal carotid artery
D. Thyrocervical trunk
Correct Answer: B
Explanation: The vertebral arteries originate from the subclavian arteries bilaterally and join
to form the basilar artery. They supply the posterior circulation.
Question 4
The temporal tap maneuver is performed to identify which vessel?
,A. Internal carotid artery
B. Vertebral artery
C. External carotid artery
D. Common carotid artery
Correct Answer: C
Explanation: Temporal tap produces oscillations in the ECA waveform via its superficial
temporal branch. This helps distinguish ECA from ICA during carotid duplex.
Question 5
Which of the following correctly describes the normal spectral waveform of the common
carotid artery?
A. Pure low-resistance pattern identical to the ICA
B. Pure high-resistance pattern identical to the ECA
C. Intermediate pattern between ICA and ECA characteristics
D. Retrograde flow during systole
Correct Answer: C
Explanation: The CCA waveform reflects a blend of both ICA and ECA contributions. It
demonstrates forward flow throughout the cardiac cycle with a broader systolic peak than
the ECA.
Question 6
The popliteal artery is a direct continuation of which vessel?
, A. Common femoral artery
B. Superficial femoral artery
C. Deep femoral artery
D. External iliac artery
Correct Answer: B
Explanation: The superficial femoral artery continues through the adductor canal and
becomes the popliteal artery after passing the adductor hiatus. The deep femoral artery
branches off the common femoral.
Question 7
Which artery is the primary supplier of blood to the anterior compartment of the lower leg?
A. Posterior tibial artery
B. Peroneal artery
C. Anterior tibial artery
D. Popliteal artery
Correct Answer: C
Explanation: The anterior tibial artery passes through the interosseous membrane to supply
the anterior compartment. It continues as the dorsalis pedis artery.
Question 8
The dorsalis pedis artery is a continuation of which vessel?
