Course
Subclavian steal phenomenon — vertebrobasilar symptoms, Doppler clues, and vessel imaging (Advanced)
Advanced course: subclavian steal can reduce vertebrobasilar flow during arm activity, causing dizziness or posterior circulation symptoms. Learn the mechanism, ultrasound/Doppler clues, and how CTA/MRA evaluates vessels
FoundationsCaregiver, SurvivorAdvanced55 minPlain (6–8)
Educational only
Educational only — not medical advice.
What you'll learn
- Understand subclavian steal as flow reversal affecting vertebral artery
- Recognize symptom triggers (arm exertion + dizziness) as a clue
- Understand Doppler/ultrasound findings at a high level
- Know what CTA/MRA may be used for and what questions to ask
Practice check
Check your understanding
A few untimed questions. Pick an answer to see instant feedback, then continue to the next lesson.
0 of 3 answered