Test Directory

Test Code
ACT
Test Name
Acetaminophen
CPT Codes
80143
Expected Turnaround Time
1 day
Clinical Utility
Measurement of acetaminophen in serum or plasma is useful for monitoring toxicity in suspected overdose cases.
Specimen and Container Info

Preferred Specimen Type: Plasma

Alternate Specimen Type: Serum

Preferred Collection Container: Light Green Top, Plasma Separator

Alternate Collection Container: Gold Top, Serum Separator or Red Top, Separator

Minimum Specimen Volume: 0.4 mL

Processing and Submission Instructions

Separator tubes: Contains clot activator and gel for separating serum from cells, but not anticoagulant. Separate serum from cells as soon as the clot has formed (30 minutes). If specimen is centrifuged before clotting is complete, a fibrin clot will form on top of the cell. This may cause the gel barrier to not be intact and could cause improper separation of serum and cells, possibly affecting test results.

Patient Preparation

Samples should be collected 4 hours post-ingestion to ensure drug levels have peaked. If time of ingestion is not known, multiple blood samples may be drawn at intervals of 2 to 3 hours.

Stability Requirements

Refrigerated

7 days

Methodology
Enzyme Immunoassay
Reference Intervals
Critical Values
Performing Location
Carbon Hospital, Cedar Crest Hospital, Cedar Crest Red Lab, Dickson City Hospital, Hazleton Hospital, Hecktown Oaks Hospital, Muhlenberg Hospital, Pocono Hospital, Redeemer Health, Roble Road Core Laboratory, Schuylkill Hospital
Testing Schedule
Routine daily, STAT testing available