ABG Interpretation Parameters
| pH 7.35–7.45 | PaCO2 35–45 | HCO3 22–26 |
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| Respiratory acidosis | ↓ | ↑ | — | | Respiratory alkalosis | ↑ | ↓ | — | | Metabolic acidosis | ↓ | — | ↓ | | Metabolic alkalosis | ↑ | — | ↑ | | Uncompensated | Abnormal | Either abnormal | | No indication that the opposite system has tried to correct for the other | | Partially compensated | Abnormal | Abnormal | Abnormal | | One system has attempted to correct for the other but has not had success | | Fully compensated | Normal | Abnormal | Abnormal | | Normal pH indicates that one system has been able to compensate for the other |
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