Above the range
Common causes of a high Acetaminophen Level
- Overdose (intentional or unintentional)
- Chronic excess with alcohol use
All tests · Therapeutic Drug Levels · Acetaminophen Level
Above the range
What causes a high Acetaminophen Level?
Normal range 10-30 (therapeutic) µg/mL (66-199 µmol/L SI). Specimen: Serum (timed after ingestion). See the full Acetaminophen Level reference page for critical values and nursing considerations.
What is the normal range for Acetaminophen Level?
The standard teaching reference range for Acetaminophen Level is 10-30 (therapeutic) µg/mL in conventional units, or 66-199 µmol/L in SI units. This value is measured in serum (timed after ingestion).
| Specimen | Serum (timed after ingestion) |
|---|---|
| Conventional range | 10-30 (therapeutic) µg/mL |
| SI range | 66-199 µmol/L |
| Critical value | > 150 µg/mL at 4 h post-ingestion risks hepatotoxicity |
| Panel | Therapeutic Drug Levels |
Full details, including nursing considerations, on the Acetaminophen Level normal range page. Reference ranges vary by laboratory, method, age, sex, and population - always use the range printed on the actual result.
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