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Test Code LAB43 Acetaminophen

Department

CHEMISTRY

Primary Collection Container

Green PST (Lithium Heparin)

Alternate Collection Container

Green Microtainer PST

Transport

Plasma refrigerated

Preferred Transport Temperature

Refrigerated

Processing

Centrifuge and separate cells from gel if testing is delayed more then 8 hours.

Stability

Refrigerated: 48 hours

Minimum Testing Volume

0.1 ml

Reference Range

16-36 mg/dL

Methodology

enzymatic hydrolysis of acetaminophen producing acetate and p-aminophenol. The p-aminophenol is determined colorimetrically by reaction with o-cresol and ammoniacal copper sulfate measured using a bichromatic endpoint technique. Siemens Dimension Vista

Performed

Sunday – Saturday

Reported

Varies

CPT Codes

G0480

Unacceptable Conditions

Specimens on gel longer than 8 hours.

Gross hemolysis.