How much aspirin was taken during the overdose?

How much aspirin was taken during the overdose?

Blood salicylate levels and the amount swallowed are the two figures that matter most. Clinicians measure the salicylate concentration in the blood right away because it directly shows how much aspirin has actually been absorbed. The ingested dose is harder to pin down unless the patient or witnesses can report the exact number of tablets or grams swallowed.

How do doctors estimate the amount swallowed?

They rely on patient history, pill counts, empty bottles, or witness statements. When the history is unclear, they still treat the case based on the blood level and symptoms rather than waiting for a precise gram count.

What blood level is considered toxic?

A level above 30 mg/dL (300 mg/L) is toxic for acute single ingestions in adults. Levels over 60–70 mg/dL usually trigger hemodialysis, especially if the patient shows confusion, seizures, or severe acid-base disturbances.

When does the level peak after a large overdose?

In most acute overdoses the peak occurs within 2–4 hours. With very large ingestions or with enteric-coated tablets, absorption can be delayed for 12–24 hours, so serial levels are drawn until they start to fall.

What happens if the dose is unknown?

Emergency teams assume a worst-case scenario and begin decontamination, bicarbonate therapy, and supportive care while labs confirm the actual exposure. The blood salicylate concentration then guides how long to continue treatment.

Can you convert a blood level back to the ingested dose?

Not accurately. The relationship depends on time since ingestion, stomach emptying, protein binding, and kidney function. A rough estimate is that every 100 mg/dL rise in salicylate roughly corresponds to an extra 1–2 g of aspirin absorbed, but this is only a guide.

Who makes the decision to give hemodialysis?

Nephrologists and toxicologists use the EXTRIP criteria: level above 100 mg/dL in acute overdose, above 90 mg/dL with impaired kidneys, or any level accompanied by severe symptoms such as coma, kidney failure, or refractory acidosis.