Author: Susan U Bhroin, Carl Byrne / Editor: Fiona Mendes / Reviewer: Thomas Bannister / Codes: / Published: 17/08/2022 / Reviewed: 15/04/2026
A 35-year-old male patient presents to the Emergency Department (ED) with a one-week history of shortness of breath and a cough. His blood pressure and heart rate are normal.
Despite appearing comfortable, his oxygen saturation on room air is 69%. He has a history of pulmonary hypertension secondary to congenital hypoventilation syndrome.
