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Medical Definition of Alveolar-arterial oxygen difference
1. The difference or gradient between the partial pressure of oxygen in the alveolar spaces and the arterial blood: P(A-a)02. Normally in young adults this value is less than 20 mm Hg. See: alveolar gas equation. (05 Mar 2000)
Lexicographical Neighbors of Alveolar-arterial Oxygen Difference
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