Digoxin, plasma or serum
Serum, Plasma (Heparin or Citrate)
4°C (transport with a cool pack if possible)
Note: If the patient is on Digibind therapy for the treatment of toxicity, the total digoxin result will be falsely elevated. Refer to the clinical significance for Digoxin (Free) for a complete description. In this case, both the Total and Free Digoxin levels should be requested.
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