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Laboratory Medicine

Test catalogue

Digoxin

Test Name

Digoxin (Lanoxin)

Red Tube with thin top Specimen Type / Requirements

Container Type = 1 Red Top

Minimum Volume = 3 ml Serum

Tube must fill to at least ½ or greater of its vacuum capacity

Specimen Handling

Collection Instructions: Collect sample in red top tube. Avoid gold top (SST). To obtain steady-state serum digoxin concentrations, blood samples should be drawn 6–8 hours after the daily dose or just prior to the next scheduled dose. Write your initials, date and time of collection on the collection label or requisition.

Special Instructions Separate samples from cells within 2hrs of collection. Thaw samples once only.

Rejection Criteria: Unlabeled or samples of non sufficient quantity .

Stability: Stable at room temperature for 8 h, at 2°C-8°Cfor 2 days, and for 1 month at -15°C to -20°C .Thaw samples once only.

Transportation: Send sample to core lab as soon as possible.

Required Documentation

Turnaround Time (TAT)

1 hour for Trauma / Stat - 2 hours for routine

Test Utilization

Routine

Reference Value

Therapeutic: 1.0 - 2.6 umol/L

Toxic: > 2.6 umol/L

Test Code

DIG

Methodology

Chemiluminesce Immunoassay

Testing Location

SMH-Biochemistry

Other Information

Last Updated: June 06, 2019