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Digoxin
Test Code3036
Alias/See Also
Lanoxin
Preferred Specimen
Plain red. Also acceptable: Green (sodium or lithium heparin).
Minimum Volume
Refrigerated.
Instructions
Collect specimen 8-12 hours (no earlier than 6 hours) after administration of oral dose. Remove serum or plasma from cells within 2 hours of collection. Transfer 4 mL serum or plasma to Standard Transport Tube. (Min: 0.5 mL)
Transport Temperature
Refrigerated.
Specimen Stability
After separation from cells: Ambient: 8 hours; Refrigerated: 48 hours; Frozen: 1 week
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Specimens collected in sodium fluoride, potassium oxalate or separator tubes. Hemolyzed specimens.
Methodology
Immunoassay
Setup Schedule
Mon-Sat
Report Available
Within 24 hours
Limitations
Refrigerated.
Clinical Significance
The presence of therapeutic anti-digoxin immune fragments in the specimen may result in spuriously high digoxin levels.
