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Test Compendium


Test Code

  • 3161

Test Synonym

  • Electrolytes, Stool


  • 20 mL

Minimum Volume

  • 10 mL

Specimen Requirements

  • Stool Specimen


  • Container- Screw Top, Sterile Container


  • Frozen

CPT Codes

  • 82438,84302,84999
    *The CPT codes provided are based on AMA guidelines and are provided for informational purposes only. CPT coding is the responsibility of the billing entity. Please direct any questions regarding the CPT coding to the payer being billed.

Special Instructions

  • 20 mL STOOL SPECIMEN ship frozen

Additional Information

  • Do not dilute with water or saline. FREEZE immediately in a screw cap container. 20 mL RANDOM LIQUID STOOL. Do NOT send solid formed stool. The test cannot be performed on a solid stool sample.

Specimen Stability

  • AMBIENT: unstable REFRIGERATED: up to 1 week FROZEN: up to 4 weeks