PDA Haemodynamic Signs — RACP Paediatrics MCQ

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ModerateCardiologyPDA Haemodynamic SignsRACP Paediatrics

Large PDA: bounding pulses and widened pulse pressure. Haemodynamic explanation?

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Correct answer: E — Aortic diastolic run-off lowering diastolic BP

PDA run-off during diastole lowers diastolic BP, widening pulse pressure.

Reference: RCH Melbourne – 2024