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Acetaminophen
Test Code201
CPT Codes
80143
Preferred Specimen
1 mL serum collected in a red-top tube (no gel)
Patient Preparation
Collect as a trough just prior to next dose
Minimum Volume
0.2 mL
Other Acceptable Specimens
Plasma collected in: EDTA (lavender-top) tube, sodium or lithium heparin (green-top) tube or fluoride/oxalate (gray-top) tube
Transport Container
Plastic, screw-capped, aliquot tube or vial
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 5 days
Refrigerated: 10 days
Frozen: Not established
Refrigerated: 10 days
Frozen: Not established
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Serum separator tubes (SST®)
Methodology
Immunoassay (IA)
Setup Schedule
Set up: Mon-Sat; Report available: Next day
Reference Range
10-20 mg/L
Clinical Significance
Acetaminophen is an analgesic agent that may be hepatotoxic when ingested in quantities exceeding 150 mg/kg.
