Normal Reference Ranges
Adult
7.35 - 7.45 pH
Pediatric
7.35 - 7.45 pH
Clinical Significance
Strictly regulated. Determines the acid-base status of the patient. Must be interpreted with pCO2 and HCO3 to determine primary etiology.
Causes of High
- Metabolic Alkalosis (Vomiting, Diuretics)
- Respiratory Alkalosis (Hyperventilation, Pain, Anxiety)
Causes of Low
- Metabolic Acidosis (DKA, Lactic acidosis, Renal failure)
- Respiratory Acidosis (Hypoventilation, COPD exacerbation)