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Complications of Peritoneal Dialysis | 마이메르시 MyMerci
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Complications of Peritoneal Dialysis

NCLEX Review Guide: Complications of Peritoneal Dialysis

Peritoneal Dialysis Overview

Definition and Process

  • Peritoneal dialysis (PD) uses the peritoneal membrane as a semipermeable filter to remove waste products and excess fluid from the blood. Dialysate solution is instilled into the peritoneal cavity through a catheter, allowing diffusion and osmosis to occur.

Key Points

  • The peritoneum acts as the dialyzing membrane
  • Process involves fill, dwell, and drain phases

Major Complications

Peritonitis

  • Most serious complication - infection of the peritoneal cavity that can be life-threatening if not treated promptly. Signs include cloudy dialysate effluent, abdominal pain, fever, nausea, and vomiting.
  • Caused by contamination during connection/disconnection procedures or catheter exit site infections. White blood cell count in effluent >100/μL with >50% neutrophils confirms diagnosis.

Catheter-Related Complications

  • Exit site infections present with redness, swelling, tenderness, and purulent drainage around catheter insertion site. Early recognition prevents progression to tunnel infections and peritonitis.
  • Catheter malfunction includes poor drainage, kinking, or displacement causing inadequate dialysis. Inflow and outflow problems require immediate assessment and intervention.

Fluid and Electrolyte Imbalances

  • Fluid overload occurs when dialysis is inadequate or patient exceeds fluid restrictions. Monitor for weight gain >2 pounds between treatments, edema, shortness of breath, and hypertension.
  • Protein loss through peritoneal membrane can lead to malnutrition and hypoalbuminemia. Patients lose 5-15 grams of protein daily through dialysate.

Assessment and Monitoring

Critical Assessment Parameters

  1. Monitor dialysate effluent for clarity, color, and volume
  2. Assess vital signs, especially temperature and blood pressure
  3. Evaluate catheter exit site for signs of infection
  4. Monitor daily weights and fluid balance
  5. Assess for abdominal pain, distention, or tenderness

Clinical Scenario

A patient on peritoneal dialysis calls reporting cloudy dialysate return and mild abdominal cramping. Temperature is 100.8°F. This suggests peritonitis - obtain dialysate sample for cell count and culture, notify physician immediately, and prepare for antibiotic therapy.

Commonly Confused Concepts

ComplicationKey SignsPriority Action
PeritonitisCloudy effluent, fever, abdominal painObtain cultures, start antibiotics
Exit Site InfectionLocal redness, drainage, tendernessTopical antibiotics, exit site care
Catheter MalfunctionPoor drainage, no pain/feverCheck positioning, irrigation

Memory Aid: "CLOUDY"

  • Culture dialysate
  • Look for fever
  • Observe for abdominal pain
  • Understand it's an emergency
  • Document findings
  • Yield to physician orders

Nursing Interventions

Prevention Strategies

  1. Maintain strict aseptic technique during all procedures
  2. Teach proper hand hygiene and connection techniques
  3. Perform daily exit site care with antimicrobial solutions
  4. Monitor for early signs of complications
  5. Ensure adequate nutrition and protein intake

Key Points

  • Prevention is always better than treatment
  • Early recognition saves lives and preserves catheter function
  • Patient education is crucial for self-management

Quick Assessment Checklist

Can identify signs of peritonitis
Knows priority interventions for cloudy effluent
Understands catheter exit site care
Recognizes fluid overload symptoms
Can differentiate between types of complications

Common Pitfalls

  • Never ignore cloudy dialysate - always indicates infection
  • Don't confuse exit site infection with peritonitis - different treatments needed
  • Remember protein loss is ongoing - monitor nutritional status regularly

You're mastering complex renal concepts! Remember, recognizing peritoneal dialysis complications early can save lives and preserve kidney function. Keep practicing these assessment skills - you've got this! 🌟

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