Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 10/9/2025

Diagnosis and Management of Peritoneal Dialysis Peritonitis

Diagnostic Considerations

  • The American Journal of Kidney Diseases recommends that all diagnostic testing must be performed when the patient is clinically stable and at least 1 month after resolution of any previous peritonitis episode 1, 2, 3
  • Peritonitis transiently increases peritoneal transport characteristics and causes impaired ultrafiltration with increased low-molecular-weight solute transport, according to the American Journal of Kidney Diseases 2, 3
  • These changes typically resolve within 1 month after peritonitis resolution, though recovery time ranges from 3 days to 1 month, as reported by the American Journal of Kidney Diseases 2, 5

Timing of Diagnostic Testing

  • Testing performed during active peritonitis yields falsely elevated clearance measurements and unreliable peritoneal equilibration test (PET) results, as noted by the American Journal of Kidney Diseases and Praxis Medical Insights 2, 4

REFERENCES

5

Diagnostic Criteria for PD-Associated Peritonitis [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

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