Preferred amount: 2.0 mL Serum
Minimum amount: 1.0 mL Serum
24hrs; Also offered STAT at an additional charge
Centrifuge required?: Yes
Special instructions: Specimen should be collected 6 to 8 hours following the last oral dose of digoxin.
To determine if the concentration of digoxin in the blood is at a therapeutic level or to detect toxic levels.