ACETAMINOPHEN

Specimen Required
Draw blood in a plain red-top tube. Spin, separate and send 1.0 mL serum refrigerated in a screw-capped plastic vial.

Alternate Specimen
Plasma: Heparin, EDTA, Fluoride

Rejection Criteria
Serum separator tubes

Methodology
High Performance Liquid Chromatography

Stability
Room Temperature: 48 hours; Refrigerated: 2 weeks; Frozen: Unacceptable

Reference Range
Therapeutic value: 5–25 µg/mL
Toxic concentration:   >200 µg/mL (4 hours after ingestion)  
   >50 µg/mL (12 hours after ingestion)  

Performed
Sunday-Saturday

Turnaround Time1 day
Test CodesACET
17-50020
CPT-4 Code (s)
82003

Warde
Medical
Laboratory