What salicylate level indicates severe toxicity?

Serum salicylate >80 mg/dL (580 μmol/L) is generally severe; >100 mg/dL is critical; however, clinical features (metabolic acidosis, CNS effects, agitation) are more important than level in severity assessment.

How does urinary alkalinization enhance salicylate elimination?

Urine pH ≥8.0 ion traps salicylate (pKa 3.0) in the urine, preventing renal reabsorption; achieved with sodium bicarbonate IV infusion; urine pH monitoring essential; increases renal elimination 5-10 fold.

What are hemodialysis indications for salicylate toxicity?

HD indications: salicylate >90-100 mg/dL; severe metabolic acidosis (pH <7.2); AKI; pulmonary edema; altered mental status; or clinical deterioration despite maximum alkalinization.

Why is CNS salicylate toxicity worse with acidemia?

Metabolic acidosis increases the ionized fraction of salicylate (more uncharged at lower pH due to pKa 3.0), facilitating CNS penetration; maintaining blood pH >7.5 reduces CNS salicylate entry.

What is the risk of intubation in severe salicylate toxicity?

Intubation in severe salicylate toxicity is high-risk: reduced minute ventilation post-intubation worsens respiratory acidosis, dramatically worsening salicylate distribution to CNS; immediate HD should be planned if intubation is required.

Salicylate Toxicity Severity and Alkaline Diuresis Calculator

Calculates salicylate toxicity severity using Done nomogram and clinical features, required urinary alkalinization parameters, and hemodialysis threshold criteria for salicylate poisoning management.

Use the full interactive calculator below, or

Related Calculators

Acetaminophen Nomogram

Medical Calculators

Renal Drug Dosing

Medical Calculators

Lithium Dosing

Medical Calculators

Salicylate Toxicity Severity and Alkaline Diuresis Calculator

Related Calculators

Frequently Asked Questions

What salicylate level indicates severe toxicity?

How does urinary alkalinization enhance salicylate elimination?

What are hemodialysis indications for salicylate toxicity?

Why is CNS salicylate toxicity worse with acidemia?

What is the risk of intubation in severe salicylate toxicity?