Dialysate quality: new standards require a new approach to compliance
David A Fendley1, Richard A Ward
1Department of Medicine, University of Louisville, Louisville, Kentucky 40202-1718, USA.
Seminars in Dialysis
|September 22, 2012
Summary
New hemodialysis (dialysis) standards lower allowable bacteria and endotoxin levels in dialysate. Facilities must enhance water treatment and quality management systems to meet these improved patient safety requirements.
Area of Science:
- Nephrology
- Water Treatment Technology
Background:
- Contaminants in drinking water pose risks to hemodialysis patients if not removed during dialysate preparation.
- Established standards previously defined acceptable contaminant levels in dialysate.
Purpose of the Study:
- To summarize recent revisions to dialysate standards, focusing on microbiological contaminants.
- To highlight the impact of improved dialysate quality on patient outcomes.
Main Methods:
- Review of updated standards for hemodialysis water and dialysate.
- Analysis of changes in maximum allowable levels for bacteria and endotoxin.
- Examination of new requirements for quality management systems.
Main Results:
- Chemical contaminant limits remain unchanged.
- New standards specify a more sensitive bacterial culture method.
- Maximum allowable levels for bacteria and endotoxin in dialysate have been reduced.
Conclusions:
- Revised standards necessitate advanced water treatment and quality management in dialysis facilities.
- Implementing facility-specific quality management systems is crucial for meeting new microbiological requirements.
- Enhanced dialysate quality is linked to improved patient outcomes in hemodialysis.
Related Concept Videos
Dialysis
Dialysis is a diffusion-based purification process that separates analyte molecules from a complex matrix. This is accomplished by allowing molecules in the solution to pass through a semipermeable membrane into a liquid on the other side. The membrane is usually made of cellulose acetate or cellulose nitrate, and the second liquid must be miscible with the solution. Ions (e.g., chloride or sodium) or organic molecules (e.g., glucose) can pass through the membrane pores, which generally have...
Dialysis
Renal failure occurs when the kidneys lose their ability to filter waste products from the blood effectively. It can be classified into two types: acute renal failure (ARF) and chronic renal failure (CRF).
Acute kidney injury develops suddenly and can be caused by pre-renal causes (e.g., hypovolemia, shock), intrinsic renal causes (e.g., acute tubular necrosis), or post-renal causes (e.g., urinary obstruction). In contrast, chronic renal failure progresses gradually over time and is often...
Acute kidney injury develops suddenly and can be caused by pre-renal causes (e.g., hypovolemia, shock), intrinsic renal causes (e.g., acute tubular necrosis), or post-renal causes (e.g., urinary obstruction). In contrast, chronic renal failure progresses gradually over time and is often...
Hemodialysis II: Procedure and Complications
DialyzersA hemodialysis (HD) dialyzer is a plastic cartridge containing thousands of parallel hollow fibers, which serve as semipermeable membranes. These fibers are typically made from cellulose-based or other synthetic materials. During HD, blood is pumped into the top of the cartridge and distributed among these fibers. Simultaneously, dialysis fluid, known as dialysate, is introduced into the bottom of the cartridge, bathing the outside of the fibers. Across the semipermeable membrane,...
Peritoneal Dialysis III: Nursing Management
Peritoneal dialysis, or PD, utilizes the peritoneal membrane as a filter to eliminate excess fluid and waste products. Effective nursing management is essential for ensuring patient safety, preventing complications, and promoting optimal function of the peritoneal dialysis process.Assessment and MonitoringNurses must thoroughly assess the patient before, during, and after each dialysis session. Regular monitoring includes vital signs, daily weight, fluid intake and output, and laboratory values...
Hemodialysis III: Nursing Management
The nursing management of a patient undergoing hemodialysis includes several critical steps, starting with a thorough assessment before the procedure.Before the Hemodialysis ProcedureFirst, record the patient's vital signs—blood pressure, heart rate, respiratory rate, and temperature—to establish a baseline. This baseline is essential for detecting conditions such as hypotension that could impact the patient's response to dialysis. Document the patient's pre-dialysis weight, as this measurement...
Hemodialysis I: Introduction
Hemodialysis (HD) is a medical treatment that artificially removes waste products, excess fluids, and toxins from the blood when the kidneys are no longer able to perform these functions effectively. In this process, blood is filtered through a semipermeable membrane, allowing for the selective removal of waste while preserving necessary components like blood cells and proteins. Hemodialysis is typically performed in patients with end-stage renal disease (ESRD) or severe kidney...
