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Test Code K POTASSIUM

Additional Codes

LAB114

Performing Laboratory

Porter Hospital Laboratory

Specimen Requirements

Specimen Type: Blood
Container/Tube: Tiger top, serum gel
Also Acceptable: Green top (Lithium Heparin)
Specimen Volume: Full tube, submit 0.6 mL
Specimen Minimum Volume: 0.3 mL
Collection Instructions:

  1. Send specimen in original tube.
  2. If there is a delay in transport of >1 hour, centrifuge tube.
  3. Centrifuged samples that have not leaked aroung gel barrier are stable for 7 days         refrigerated (2 – 8ºC)

NOTE: Hemolysis can elevate potassium result.  Please submit non-hemolyzed samples.

Specimen Transport Temperature

Refrigerated

Test Classification and CPT Coding

84132

Test Schedule / Analytical Time / Test Priority / Turn Around Time

Daily / 24 Hours / Available STAT / Routine - 4 Hours

                                                      STAT - 60 Minutes

Critical Values

<3.0 or ≥6.0 mmol/L

Normal Reference Values

0 up to 6 Months   3.7-6.0 mmol/L
6 Months up to 1 Years   3.7-6.0 mmol/L
1 Years up to 18 Years   3.5-5.0 mmol/L
18 Years up to Unspecified   3.5-5.0 mmol/L