Above the range
Common causes of a high Digoxin Level
- Renal impairment
- Hypokalemia (potentiates toxicity)
- Drug interactions (amiodarone, verapamil)
- Overdose
Looking for the other direction? See what causes a low Digoxin Level.
All tests · Therapeutic Drug Levels · Digoxin Level
Above the range
What causes a high Digoxin Level?
Normal range 0.8-2 ng/mL (1-2.6 nmol/L SI). Specimen: Serum (trough, ≥ 6 h post-dose). See the full Digoxin Level reference page for critical values and nursing considerations.
What is the normal range for Digoxin Level?
The standard teaching reference range for Digoxin Level is 0.8-2 ng/mL in conventional units, or 1-2.6 nmol/L in SI units. This value is measured in serum (trough, ≥ 6 h post-dose).
| Specimen | Serum (trough, ≥ 6 h post-dose) |
|---|---|
| Conventional range | 0.8-2 ng/mL |
| SI range | 1-2.6 nmol/L |
| Critical value | > 2.0 ng/mL is toxic (many target 0.5-0.9 in heart failure) |
| Panel | Therapeutic Drug Levels |
Full details, including nursing considerations, on the Digoxin 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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