What is the most frequent complication of peritoneal dialysis?

AIIMS Delhi NO-2016

Medical Surgical Nursing

Easy

Appeared in: AIIMS Delhi NO-2016

Explanation

Peritonitis, an infection of the peritoneal membrane, is the most common and serious complication associated with peritoneal dialysis (PD).
It is typically caused by a break in sterile technique during dialysate exchanges, allowing bacteria from the skin to enter the abdominal cavity.
The hallmark sign of peritonitis is cloudy or turbid effluent (drained dialysate fluid), often accompanied by abdominal pain and fever.
The most common causative organisms are gram-positive cocci, such as Staphylococcus, which originate from the skin.

Option A: A loose or displaced catheter is a mechanical complication. While it can lead to poor dialysate flow or leaks, it is less frequent than infectious complications like peritonitis.
Option B: Hernias (inguinal, umbilical, or incisional) are a potential long-term complication of PD due to the continuous increased intra-abdominal pressure from the dialysate. They are not the most frequent acute complication.
Option D: Hyperglycemia is a common metabolic complication because glucose from the dialysate is absorbed into the bloodstream. However, peritonitis occurs more frequently and poses a more immediate, serious threat to the continuation of PD therapy.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Complications of Peritoneal Dialysis as background academic context rather than a clinical decision trigger.
The nurse's primary role in PD care is patient education, focusing on meticulous aseptic technique for all catheter connections and exchanges to prevent peritonitis.
Early detection is critical. Nurses must teach patients to inspect every bag of drained dialysate for cloudiness and to immediately report it, along with any abdominal pain or fever.
What if? If a patient reports abdominal pain but the effluent is clear, the nurse should instruct the patient to check for constipation (a common cause of pain) and to monitor the next effluent bag closely. Persistent pain, even with clear fluid, warrants medical evaluation to rule out other issues like catheter malposition or early infection.

How to Approach the Question

First, identify the keywords in the question: 'most frequent complication' and 'peritoneal dialysis'. This signals a need to recall the common problems associated with this specific treatment.
Categorize the potential complications of peritoneal dialysis into three main groups: infectious (like peritonitis), mechanical (like catheter issues or hernias), and metabolic (like hyperglycemia).
Consider the nature of the procedure. Peritoneal dialysis involves a permanent catheter and daily exchanges, creating multiple opportunities for bacteria to enter a sterile body cavity.
Compare the frequency of these categories. Due to the constant risk of contamination with every exchange, infectious complications, particularly peritonitis, are the most common and significant risk.
Evaluate the given options against this understanding. Peritonitis fits the description of the most frequent major complication. The other options are either less frequent or are categorized as metabolic or long-term mechanical issues.

Concept Tested & Keywords

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E6 Medicine Harrison 22e Part 2 p. 305-307