Types of Acute Hypoxemic Respiratory Failure

There are 5 main types of unexplained acute hypoxemia
List them below
The first example listed next to our patient's type of hypoxemia is the KEY to receive your next card
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Last updated: April 14, 2026
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First submittedApril 14, 2026
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Hint
Answer
Mechanism
Example
1
COPD
Hypoventilation
Reduced alveolar ventilation
COPD, Neuromuscular disease, overdose, OHS
2
Height
Elevated Altitude
Reduced inspired oxygen fraction
hiking mountains, enclosed spaces
3
IPF
Alveolar Hypoventilation
Impaired alveolar diffusion due to Thickened alveolar membrane
interstitial lung disease, pulmonary fibrosis
4
PE
VQ Mismatch
Perfused alveoli poorly ventilated
PNA, PE, CHF, atelectasis
5
PFO
Shunt
Blood bypasses ventilated alveoli completely
ARDS, intracardiac shunt
 
What is most likely diagnosis of our patient and the ~~KEY~~ to unlock your next card
PNA
 
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