All tests · Therapeutic Drug Levels
Therapeutic Drug Levels
Normal range 0.8–2 ng/mL (1–2.6 nmol/L SI). Specimen: Serum (trough, ≥ 6 h post-dose).
Also known as: Lanoxin level.
| Specimen | Serum (trough, ≥ 6 h post-dose) |
|---|---|
| Conventional range | 0.8–2 ng/mL |
| SI range | 1–2.6 nmol/L |
| Conversion factor | ×1.281 (conventional → SI) |
| Critical value | > 2.0 ng/mL is toxic (many target 0.5–0.9 in heart failure) |
| Panel | Therapeutic Drug Levels |
Convert any Digoxin Level result between units on the unit converter.
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).
A commonly taught critical (panic) value is > 2.0 ng/mL is toxic (many target 0.5–0.9 in heart failure). Critical results are reported to the provider immediately under your facility's policy.
Source: Adult reference values compiled from Pagana & Pagana, Mosby's Diagnostic and Laboratory Test Reference, and Fischbach & Dunning, A Manual of Laboratory and Diagnostic Tests. Reference ranges vary by laboratory, method, age, sex, and population — always use the range printed on the actual result.
Above the range
Below the range
At the bedside
Study aid
Same panel