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Blood gases

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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Blood gases are commonly measured, and with a logical, systematic approach they may be easily interpreted.

Blood gases provide information about:

  • ventilation
  • oxygenation and alveolar-arterial O2 gradient
  • acid-base status

Note that to convert from kiloPascals to millimetres of mercury, multiply by 7.5.

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