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HelpTest Code DIG Digoxin, Serum
Specimen Required
Patient Preparation: For 12 hours before specimen collection do not take multivitamins or dietary supplements containing biotin (vitamin B7), which is commonly found in hair, skin, and nail supplements and multivitamins.
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions:
1. Draw blood 6 to 8 hours after the last dose of digoxin.
2. Serum gel tubes should be centrifuged within 2 hours of collection.
3. Red-top tubes should be centrifuged, and the serum aliquoted into a plastic vial within 2 hours of collection.
Forms
If not ordering electronically, complete, print, and send 1 of the following forms with the specimen:
-Cardiovascular Test Request Form (T724)
-Therapeutics Test Request (T831)
Useful For
Monitoring digoxin therapy
Method Name
Electrochemiluminescent Immunoassay
Reporting Name
Digoxin, SSpecimen Type
SerumSpecimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Refrigerated (preferred) | 7 days |
| Frozen | 180 days |
Reject Due To
| Gross hemolysis | Reject |
Reference Values
<16 years:
Therapeutic ranges have not been established for patients who are less than 16 years of age.
≥16 years:
Therapeutic range: 0.6-1.2 ng/mL
Toxic concentration: ≥4.0 ng/mL
Performing Laboratory
MCHS- MankatoTest Classification
This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.CPT Code Information
80162
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| DIG | Digoxin, S | 83093-5 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| DIG | Digoxin, S | 83093-5 |
Day(s) Performed
Monday through Sunday