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Sleep Board Review Question: Nocturnal Hypoxemia in COPD

Chithra Poongkunran1

Rohit Budhiraja, MD1,2

1 Department of Medicine, The University of Arizona, Tucson, AZ, 85724, USA.

2 Department of Medicine, Southern Arizona Veterans Affairs Health Care System (SAVAHCS), Tucson, AZ 85723, USA.


Question: Which of the following is the strongest predictor of nocturnal hypoxemia in patients with chronic obstructive pulmonary disease (COPD)?

  1. Forced expiratory volume in 1 second (FEV1)
  2. Age
  3. Daytime Oxygen Saturation
  4. Radiological severity of COPD

Reference as: Poongkunran C, Budhiraja R. Sleep board review question: nocturnal hypoxemia in COPD. Southwest J Pulm Crit Care. 2013;6(1):12-14. PDF

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