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PTA Blood Gases
| Term | Definition |
|---|---|
| Acid Base Balance (pH) | 7.35-7.45 |
| Ventilation (PaCO2) | 35-45 mm Hg at sea level breathing ambient air |
| Oxygenation of Arterial Blood (PaO2) | 80-100 mm Hg at sea level breathing ambient air |
| Bicarbonate (HCO3-) | 22-26 mEq/L |
| Percent Oxygen Saturation of Hemoglobin (SaO2) | 95-98% |
| Acidemia | elevated acidity of blood,<7.35; increased hydrogen |
| Alkalemia | decreased acidity of blood, >7.45; increased bicarbonate (respiratory); decreased acidity (metabolic) |
| Hypoxemia | Low level of arterial O2; <80 mm Hg |
| Hypoxia | Low level of O2 in tissue despite adequate perfusion |