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Laboratory Test Directory

Potassium, Fluid

Components

Name Method Department Units
Potassium, Fluid Ion selective electrode
Core Lab, Chemistry, Routine mmol/L

Specimen Requirements

Fluids

Container Type Container Size Specimen Volume
Preferred

Green tube (Lithium heparin), No Gel

3 mL 3 mL
Alternate

Red tube, (no anticoagulant), No Gel

3 mL 3 mL
Stability

Room temperature - 4 hour(s)
Refrigerated - 24 hour(s)

Specimen Preparation

  • Centrifuge within 1 hour, separate supernatant and refrigerate

Reasons for Rejection

  • Sample too viscous

Comments

Identify fluid type. Not all fluids can be assayed. Interpret results with caution. Blood in specimen may cause falsely elevated results. Reference ranges are not available.

CPT Code

  • 84132