| Alternative Names:
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| Arterial blood gas analysis; ABG
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| Normal Values:
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Values at sea level:- Partial pressure of oxygen (PaO2) - 75 to 100 mm Hg
- Partial pressure of carbon dioxide (PaCO2) - 35 to 45 mm Hg
- A pH of 7.35 to 7.45
- Oxygen saturation (SaO2) - 94% to 100%
- Bicarbonate - (HCO3) - 22 to 26 mEq/liter
Note: mEq/liter = milliequivalents per liter; mm Hg = millimeters of mercury
At altitudes of 3,000 feet and above, the values for oxygen are lower. |
| What abnormal results mean:
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| Abnormal results may indicate respiratory, metabolic, or renal diseases. The results may also be abnormal in trauma, particularly with head or neck injuries that may affect breathing.
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