Ventilation-Perfusion Matching MCQ — NEET PG Practice Question | NEETPGAI
Ventilation-Perfusion Matching
hard
heart-pulse Physiology
A 72-year-old woman with acute pneumonia in the right lower lobe is hypoxemic (PaO₂ 65 mmHg on room air). A 35-year-old man with a patent foramen ovale (PFO) and right-to-left shunt is also hypoxemic (PaO₂ 68 mmHg). Which finding best distinguishes the V/Q mismatch in pneumonia from the anatomic shunt in PFO?
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