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Digoxin

Source Blood
Mnemonic DIG
Specimen Requirements

CLS:
1 x 3 mL or 4.5 mL light green (mint) top PST tube.  Gold top SST tube also acceptable.
0.2 mL plasma or serum

Rural:
1 x 3 mL gold top SST tube

Minimum Whole Blood Volumes for Microcollections

Collect specimen at least 8 hours post dose.

Optimally, collection of specimen should be 0-60 minutes prior to next dose (trough level).

Specimen Handling
Additional Information Record time of last dose on requisition.

For additional information, see Half-life and Time to Steady State.
Testing Location Chemistry-DSC, FMC, PLC, RGH, SHC
Rural: BMSH, HRH, SDHS
Testing Frequency Daily
Alternate Name(s) Lanoxin
Reference Interval

Therapeutic range

1.0 – 2.6 nmol/L

Evidence-based therapeutic range for CHF

0.6 – 1.2 nmol/L

Click here for critical values