Multiple choice

Which of the following is false in Down's syndrome?

  1. Increased PAPP-A

  2. Increased â-HCG

  3. Absent nasal bone

  4. Increased ductus venous blood flow
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

PAPP-A is DECREASED in Down syndrome, making 'Increased PAPP-A' a false statement. Beta-HCG is increased, nasal bone absence is a key marker, and ductus venosus blood flow is DECREASED (not increased). The question asks which is false, so A is correct.

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