All tests · Arterial Blood Gas (ABG)
Arterial Blood Gas (ABG)
Normal range 80-100 mm Hg (10.6-13.3 kPa SI). Specimen: Arterial blood.
Also known as: partial pressure of oxygen, pO2.
Combined adult band. LabVals does not publish separate men's, women's, or pediatric ranges for PaO₂ (Arterial O₂); those can be narrower than the band shown.
| Specimen | Arterial blood |
|---|---|
| Conventional range | 80-100 mm Hg |
| SI range | 10.6-13.3 kPa |
| Conversion factor | ×0.133 (conventional → SI) |
| Critical value | < 40 mm Hg (severe hypoxemia) |
| Panel | Arterial Blood Gas (ABG) |
Convert any PaO₂ (Arterial O₂) result between units on the unit converter.
The standard teaching reference range for PaO₂ (Arterial O₂) is 80-100 mm Hg in conventional units, or 10.6-13.3 kPa in SI units. This value is measured in arterial blood.
For PaO₂ (Arterial O₂), the commonly taught critical (panic) value is: < 40 mm Hg (severe hypoxemia). Critical results are reported to the provider immediately under your facility's policy.
Source: Adult reference values compiled from Pagana & Pagana, Mosby's Diagnostic and Laboratory Test Reference, and Fischbach & Dunning, A Manual of Laboratory and Diagnostic Tests. Reference ranges vary by laboratory, method, age, sex, and population - always use the range printed on the actual result.
Above the range
Below the range
At the bedside
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