Rolando Berger, MD
To the Editor: I enjoyed reading Dr. Hansen's clever letter (1) regarding the article by Dillard and colleagues (2) on the oxygen requirements of patients with lung disease who must travel by airplane. I am a bit concerned, however, about his unqualified recommendation that patients with borderline hypoxemia should drink or eat a carbohydrate-rich diet before and during flights.
Dr. Hansen is essentially correct in stating that in a patient with a partial pressure of arterial carbon dioxide (PaCO2) of 40 mm Hg, increasing the respiratory quotient (Rq) value from 0.75 to 0.95 would result in an increase in the
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Berger R. Oxygen, Food, and Air Travel. Ann Intern Med. 1990;112:236. doi: 10.7326/0003-4819-112-3-236_1
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Published: Ann Intern Med. 1990;112(3):236.
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Print ISSN: 0003-4819 | Online ISSN: 1539-3704
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