Aid in the assessment of acetaminophen toxicity.
Within 24 hours
Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.5 mL)
Plasma. Specimens collected in separator tubes, sodium fluoride/potassium oxalate, or sodium citrate anticoagulants.
After separation from cells: Ambient: 2 weeks; Refrigerated: 2 weeks; Frozen: 45 days
4-hours after ingestion: greater than 150 µg/mL
12-hours after ingestion: greater than 40 µg/mL
Acetaminophen concentrations greater than 150 µg/mL at 4 hours after ingestion and 40 µg/mL at 12 hours after ingestion are often associated with toxicity.
Acetaminophen levels drawn within 4-6 hours after IV administration of a standard loading dose of 150 mg/kg of N-acetyl cysteine may be falsely low due to interference with the assay.
|Component Test Code*||Component Chart Name||LOINC|
- Tylenol level