Test Overview
Method
Colorimetry - enzymatic
Analytical Platform
Roche CobasPRO
Result Included
Acetaminophen
Aliases/Synonyms
Tylenol; Datril; Phenacetin; Paracetamol
Specimen
Specimen Type
Avoid gel-separator tubesSerum
Containers
Collection Containers
Red Top (no additive)
Volume
Sample Volume
1 mL
Minimum Volume
0.5 mL
Specimen Comment
Gel-separator tubes are <b>not</b> acceptable.
Collection & Handling
Handling Information
Separate within 2 hours of collection. Repeat freeze/thaw cycles should be avoided.
Stability
| Ambient | Refrigerated | Frozen |
|---|---|---|
| 1 day | 7 days | 180 days |
Rejection Criteria
| Criteria | Specification |
|---|---|
| Specimen | Gel-separator tube |
Performance & Interpretation
Turnaround Time
3 days
Results
Name
Units
Reference Range
Conversion
-
Acetaminophenµmol/LAbnormal: > 66
Critical: > 660mg/L x 6.62
Comment
Abnormal Interpretation: Potentially toxic acetaminophen level depending on clinical context and time since last ingestion. Please refer to Rumack-Matthew nomogram if applicable (i.e., suspected single acute ingestion).
Critical Interpretation: Suggests toxicity in patients presenting ≥ 6 hours following single acute acetaminophen ingestion. Please refer to Rumack-Matthew nomogram.
Referral Location
Canada
Interface & Setup
HL7 Interface Codes
| Order Code | Result Name | Result Codes | Units |
|---|---|---|---|
| ACETA | Acetaminophen | 9306 | umol/L |
Test Version
Last Updated
2023-08-16