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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Digoxin
Test CodeDIG
Preferred Specimen
1 mL serum
Patient Preparation
Collect as a trough just prior to next dose
Minimum Volume
0.5 mL
Other Acceptable Specimens
Heparinized plasma
Instructions
Collect specimen 6-8 hours post dose. Include date and time of last dose on order request.
Transport Container
Transport tube
Transport Temperature
Refrigerated (cool packs)
Specimen Stability
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Anticoagulants other than heparin
Methodology
Immunoassay (IA)
Setup Schedule
24/7
Report Available
Same day
Limitations
Spironolactone and some herbal drugs may interfere with this test.
Reference Range
0.8-2.2 ng/mL
Clinical Significance
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.