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Test Code SQ DIG, EPIC LAB23 Digoxin, Plasma or Serum


Kinetic Interaction of Microparticles in Solution (KIMS)

Performing Laboratory

Meriter Laboratories

Specimen Requirements

Once a steady-state has been achieved, and when peak and trough values are not critical, a draw time of 6 to 8 hours is recommended after an oral dose.


Submit only 1 of the following specimens:



Specimen Type: Plasma

Container/Tube: Light-green top (lithium heparin gel)

Specimen Volume: 1 mL

Collection Instructions:

1. Avoid hemolysis and lipemia.

2. Label specimen as plasma.



Specimen Type: Serum

Container/Tube: Serum gel

Specimen Volume: 1 mL

Collection Instructions:

1. Avoid hemolysis and lipemia.

2. Label specimen as serum.

Specimen Transport Temperature

Refrigerate 48 hours/Frozen OK

Reference Values

Usually subtherapeutic: <0.5 ng/mL

Sometimes therapeutic (eg, CHF): 0.5-0.9 ng/mL

Therapeutic, usually nontoxic: 1.0-2.0 ng/mL

Usually toxic: 2.1-2.4 ng/mL

Critical value (automatic call-back): ≥2.5 ng/mL

Day(s) Test Set Up

Monday through Sunday

Specimen Requirements Additional Information

Specimen Stability:

Plasma or serum is stable refrigerated (2° C-8° C) for 24 hours and frozen (≤-20° C) for 1 to 2 weeks.

Test Classification and CPT Coding