Course

Bubble study for PFO/shunt — what happens in the test and how to read the result (Advanced)

Advanced course: understand bubble study (contrast echo) for shunts like PFO, what a ‘positive’ test means, and what questions to ask about next steps and treatment decisions

Cross-cuttingCaregiver, SurvivorAdvanced20 minPlain (6–8)

Educational only

Educational only — not medical advice.

What you'll learn

  • Understand what a bubble study tests for
  • Know what ‘positive’ vs ‘negative’ generally means
  • Understand why next steps may include TEE or cardiology consult
  • Ask questions that connect results to prevention decisions

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

Question 1

1. A bubble study is used to look for an abnormal passage between heart chambers.

Question 2

2. A positive bubble study suggests…

Question 3

3. A good question is…