Which patients are at highest risk for hypoxemia?

Patients at highest risk for hypoxemia typically include those with chronic respiratory diseases, such as COPD and Asthma, as well as individuals with acute respiratory infections like pneumonia. Additionally, patients with certain cardiovascular conditions, obesity hypoventilation syndrome, or those undergoing sedation and anesthesia are also vulnerable. Other factors include age, smoking history, and pre-existing lung conditions, which can compromise oxygen exchange and lead to lower blood oxygen levels.