Partial Pressure - in Medicine

In Medicine

The partial pressures of particularly oxygen and carbon dioxide are important parameters in tests of arterial blood gases, but can also be measured in, for example, cerebrospinal fluid.

Reference ranges for and
Unit Arterial blood gas Venous blood gas Cerebrospinal fluid Alveolar pulmonary
gas pressures
kPa 11–13 4.0–5.3 5.3–5.9 14.2
mmHg 75–100 30–40 40–44 107
kPa 4.7–6.0 5.5–6.8 5.9–6.7 4.8
mmHg 35–45 41–51 44–50 36

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