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Laboratory Test Directory

Potassium, Feces


Name Method Department Units
Potassium, Feces Ion selective electrode
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Specimen Requirements

Stool (liquid)

Container Type Container Size Specimen Volume

Sterile container

N/A 5 mL

Refrigerated - 2 week(s)
Frozen - 6 month(s)
Room temperature - 1 hour(s)

Specimen Preparation

  • Transport to laboratory as soon as possible
  • Refrigerate immediately after collection

Reasons for Rejection

  • Formed stool
  • Non-liquid stools


Specimen must be liquid. 24 hr. or random specimen acceptable. Note collection interval on requisition.

CPT Code

  • 84999