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Mayo Clinic Laboratories

Test Code KPS Potassium, Plasma


Specimen Required


Collection Container/Tube:

Preferred: Light-green top (lithium heparin plasma gel)

Acceptable: Green top (heparin)

Specimen Volume: 0.5 mL

Submission Container/Tube: Plastic vial

Collection Instructions:

1. Plasma gel tubes should be centrifuged within 2 hours of collection.

2. Green-top tubes should be centrifuged, and plasma aliquoted into a plastic vial within 2 hours of collection.


Useful For

Evaluation of electrolyte balance, cardiac arrhythmia, muscular weakness, hepatic encephalopathy, and kidney failure using plasma specimens

Method Name

Indirect Ion-Selective Electrode (ISE)

Reporting Name

Potassium, P

Specimen Type

Plasma Li Heparin

Specimen Minimum Volume

0.25 mL

Specimen Stability Information

Specimen Type Temperature Time
Plasma Li Heparin Refrigerated (preferred) 14 days
  Ambient  14 days

Reject Due To

Gross hemolysis Reject
Gross lipemia OK

Reference Values

<1 year: Not established

≥1 year: 3.6-5.2 mmol/L

Day(s) Performed

Monday through Sunday

Report Available

Same day/1 to 2 days

Performing Laboratory

MCHS- Mankato

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information

84132

LOINC Code Information

Test ID Test Order Name Order LOINC Value
KPS Potassium, P 2823-3

 

Result ID Test Result Name Result LOINC Value
KPS Potassium, P 2823-3