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Acetaminophen
Test CodeLAB43
Alias/See Also
Paracetamol; Tylenol
CPT Codes
82003
Preferred Specimen
Heparinized plasma
Centrifuge within 2 hours of collection; refrigerate within 8 hours of collection.
Centrifuge within 2 hours of collection; refrigerate within 8 hours of collection.
Minimum Volume
0.5 mL plasma/serum
Other Acceptable Specimens
Serum (SST or red top)
Instructions
Routine venipuncture. 5 mL Light Green (Mint) top lithium heparin tube or SST tube. Minimum volume 2 mL.
Transport Temperature
Refrigerated
Specimen Stability
Refrigerated, stable 72 hours; stable 8 hours at room temperature
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Insufficient quantity; failure to follow collection or storage requirements
Methodology
Colorimetric
Setup Schedule
Daily
Report Available
Within 4 hours
STAT 60 minutes
STAT 60 minutes
Reference Range
<=30.0 µg/mL Critical Values: >30.0 µg/mL
Clinical Significance
Acetaminophen (paracetamol) is a common drug which is used as an analgesic and antipyretic agent. Excessive doses can have toxic effects with the most common being hepatotoxicity. The drug may also cause acute tubular necrosis, pancreatitis, and myocardial necrosis.
Performing Laboratory
CH CHOMP HOSPITAL LAB (831-625-4811): CH CHEMISTRY