Acetaminophen
Ordering Recommendation
Aid in the assessment of acetaminophen toxicity.
Methodology
Spectrophotometry
Performed
Sun-Sat
Reported
Within 24 hours
New York DOH Approval Status
Specimen Required
Plain red.
Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.5 mL)
Refrigerated.
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
Reference Interval
Test Number |
Components |
Reference Interval |
---|---|---|
Acetaminophen | 10-30 µg/mL |
Interpretive Data
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.
FDA
Note
Hotline History
CPT Codes
80143
Components
Component Test Code* | Component Chart Name | LOINC |
---|---|---|
0090001 | Acetaminophen | 3298-7 |
Aliases
- Datril
- Tylenol
- Tylenol level