Normal Reference Ranges
Adult
Therapeutic: 15 - 30 mg/dL
Pediatric
Therapeutic: 15 - 30 mg/dL
Clinical Significance
Toxicity causes a classic mixed primary respiratory alkalosis and primary elevated anion-gap metabolic acidosis. Tinnitus is a common early symptom.
Causes of High
- Aspirin overdose
- Chronic toxicity in elderly
Causes of Low
- Subtherapeutic dosing