Digoxin is a drug used to treat heart failure and this test is used for therapeutic Drug Monitoring. Digoxin is a cardiac glycoside derived from the digitalis plant. It is used to treat congestive heart failure and atrial dysrhythmias. Digoxin levels are monitored to assure adequate therapeutic levels are achieved and to avoid toxicity.



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  • Fasting Required: NO
  • Preferred Specimen: Serum
  • Reference Range(s): 0.8-2.0 µg/L
  • Limitations: Spironolactone and some herbal drugs may interfere with this test.
  • Turnaround Time: 3 Days
  • Test Code: 418