Continuous Ambulatory Peritoneal Dialysis (CAPD)

How Continuous Ambulatory Peritoneal Dialysis (CAPD) Works and Who Benefits From It

Continuous Ambulatory Peritoneal Dialysis (CAPD) is a manual form of peritoneal dialysis that allows you to perform your treatments throughout the day without using a machine. Each “exchange” involves draining used dialysate from your abdomen and replacing it with fresh solution using gravity. Most people complete four exchanges per day, with each exchange taking about 20–40 minutes. Between exchanges, the dialysate stays in your abdomen and works continuously to filter waste and excess fluid.

CAPD offers several advantages for people who prefer a flexible schedule, want to avoid nighttime treatments, or are sensitive to alarms and machine-based therapy. Because CAPD does not rely on electricity or a cycler, it can be a good option for patients who travel, have limited space at home, or prefer a treatment routine that aligns with daily meals and activities.

At Home Dialysis Therapies of San Diego, we help you learn each step of the CAPD process, from hand hygiene and catheter care to connecting, filling, and draining safely. Your nurse will guide you through equipment management, recognizing early signs of infection, understanding when to call for support, and building confidence in performing CAPD independently. Our goal is to ensure you feel secure, capable, and supported as you incorporate CAPD into your daily life.

Benefits of CAPD

Frequently Asked Questions

CAPD works by filling your abdomen with a sterile dialysate solution that absorbs waste and extra fluid from your blood. After several hours, you drain the used fluid and replace it with fresh solution. Each drain-and-fill step is called an “exchange.” Most people do about four exchanges per day, spaced throughout the day, and no machine is required.

A single CAPD exchange usually takes 30 to 40 minutes, depending on your drain time and how quickly the new solution flows in. Between exchanges, you can go about your day normally while the dialysate works inside your abdomen.

Yes! CAPD is designed to fit into daily routines. You can do can continue to worktravel, or just relax at home, as long as you have a clean space and your supplies. Many people appreciate that CAPD does not require a machine, electricity, or alarms, which makes it easy to maintain independence and mobility.

Your CAPD setup includes dialysate bags, a drain bag or line, a connection set, masks or protective supplies, and your peritoneal dialysis catheter. All exchanges are done using gravity and no cycler or equipment stand is required. Your nurse will teach you how to organize supplies and keep your process clean and safe.

The most essential part of CAPD is preventing infection, especially peritonitis. Your nurse will teach you how to keep your connection area clean, recognize early warning signs such as cloudy drain fluid or abdominal pain, and know when to call the care team. With proper technique, most patients perform CAPD safely and confidently.

Exterior sign marking the entrance to Home Dialysis Therapies of San Diego's north clinic in Suite 250
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