Course

CT and CTA for stroke — what they show, contrast safety, and timing (Advanced)

Advanced course explaining non-contrast CT and CT angiography: hemorrhage vs ischemia, vessel blockage detection, contrast considerations, and common questions

FoundationsCaregiver, SurvivorAdvanced20 minPlain (6–8)

Educational only

Educational only — not medical advice.

What you'll learn

  • Explain why CT is usually the first stroke imaging test
  • Understand what CTA adds (blood vessel view)
  • Know basic contrast safety issues (kidney disease, allergy history)
  • Ask informed questions about results

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 non-contrast CT is often used first to check for bleeding.

Question 2

2. CTA mainly shows…

Question 3

3. Contrast safety question is…