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Test Code ACETAMIN Acetaminophen Level

Important Note

No add-ons after 8 hours of collection if specimen is still on gel separator.

Clinical System Name

Acetaminophen Level




Acetaminophen measurements are useful in the diagnosis and treatment of acute overdose, which can result in severe hepatotoxicity and nephrotoxicity.

Sample Requirements

Specimen: Whole Blood

Container(s): Gold SST, Dark Green/Sodium Heparin, Lavender/EDTA, Red, Gold Microtainer, Lt. Green/Li Heparin Microtainer, Lavender/EDTA Microtainer

Preferred Vol: 1.0 mL

Minimum Vol: 0.5 mL


Note: Test is not affected by slight to moderate hemolysis.


Processing Instructions

Reject due to: Age of Specimen

Spin: Y

Aliquot: Y

Temp: 2-8oC

Storage location: Core 5 Chemistry Refrigerator


Off-site collection:  Spin blood, refrigerate or freeze serum/plasma.



Specimen Type Temperature Time
Serum or Plasma RT

14 D

Serum or Plasma 2-8oC

 14 D

Serum or Plasma -20oC or -70oC

45 D



STAT Performed TAT
Y 24/7 1 H


Performing Laboratory

Seattle Children's Laboratory    


Department:  Core Chemistry

Phone Number: 206-987-2617

Reference Range


Therapeutic Range:
10 - 20 ug/mL



Method:  Colorimetric method by Vitros 4600

Analytical Volume:  0.02 mL + 0.03 mL dead space

CPT Codes