What is the acceptable range for dialysate pH?

Asked By: Mindi Egorov | Last Updated: 21st January, 2020
Category: medical health surgery
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Conductivity must be within 5% of nominal machine value, and pH should be in the range of 6.9-7.6.

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Furthermore, what is an acceptable test result when verifying the absence of residual bleach?

Any color (preferably clear) indicating 0.5 ppm or below on the appropriate testing strips.

Likewise, what does conductivity measure in dialysis? The conductivity of the dialysis fluid is a parameter well suited for measuring the total concentration of salt. The conductivity is easy to measure with reasonable accuracy and the measuring device is usually very stable over time. It can be used for both proportioning and monitoring of the concentrate intermixing.

Secondly, what is the maximum level for bacteria in water used for dialysis?

Additional studies and outbreak investigations demonstrated that the incoming water and final dialysis fluids should not exceed a maximum contaminant level (MCL) of 100–1000 CFU because of possible pyrogenic or septicemic complications (37,38).

What is AAMI in dialysis?

Water and equipment used for dialysis meets the water and dialysate quality standards and equipment requirements found in the Association for the Advancement of Medical Instrumentation (AAMI) publication, “Dialysate for hemodialysis,” ANSI/AAMI RD52:2004.

29 Related Question Answers Found

What happens if bicarbonate is mixed too long?

If bicarb is over mixed resulting in the loss of CO2, it will NOT have any effect at all on the machines conductivity as you still have all of the dissolved sodium. The only thing to detect loss of CO2 is the pH check of the final dialysate.

What does Bicarb do in dialysis?

Bicarbonate administration via the dialysate helps maintain the acid–base balance in these patients. Serum bicarbonate level in dialysis patients is determined by several factors that include dietary protein intake, nutritional status and dialysis prescription, etc.

What is the solution used in dialysis?

Dialysate, also called dialysis fluid, dialysis solution or bath, is a solution of pure water, electrolytes and salts, such as bicarbonate and sodium. The purpose of dialysate is to pull toxins from the blood into the dialysate. The way this works is through a process called diffusion.

What must the composition of the dialysis fluid be?

Dialysate solution commonly contains six (6) electrolytes: sodium (Na+), potassium (K+), calcium (Ca2+), magnesium (Mg2+), chloride (Cl), and bicarbonate ( ). A seventh component, the nonelectrolyte glucose or dextrose, is invariably present in the dialysate.

What is dialysate made up of?


Dialysate. As previously mentioned, the make up of dialysate or the dialysis 'bath', is: sodium chloride, sodim bicarbonate or sodium acetate, calcium chloride, potassium chloride, and magnesium chloride. This is the general composition of dialysate, but other compounds such as glucose may also be included.

How much water does a dialysis machine use?

In hemodialysis, assuming a dialysate flow rate of 500 ml/min, a patient is exposed to 120 liters of purified water during a typical 4-hour dialysis session.

What is acid used for in dialysis?

Acid concentrate contains acetic acid, citric acid or sodium diacetate to maintain the final dialysate pH. Organic acids from the acid concentrate consume bicarbonate from the bicarbonate concentrate, leading to an equivalent gain of sodium acetate in the final dialysate solution.

How do we replace normal kidney functions?

Dialysis removes fluid and wastes
The main purpose of dialysis is to replace impaired renal function. When your kidneys are damaged, they are no longer able to remove wastes and excess fluid from your bloodstream efficiently. Waste such as nitrogen and creatinine build up in the bloodstream.

Can you drink water during dialysis?

Most dialysis patients need to limit their fluid intake to 32 ounces per day. Manage your thirst. This will help you avoid drinking too much fluid between dialysis treatments.

How much fluid is removed during dialysis?


It has been shown that the maximum amount of fluid removal during dialysis should be less than 13 cc/kg/hr to avoid risk, but that even at 10cc/kg/hr heart failure symptoms start to develop. Removing more than this is associated with increased mortality.

What does water do in dialysis?

Removing the harmful waste and extra salt and fluids helps control blood pressure, pH balance, and plasma volume, similar to the results of a functioning kidney. For the health and safety of hemodialysis patients, it is vital to ensure that the water that is used to make dialysate is safe and clean.

What is an unacceptable limit for an endotoxin result?

AAMI standards for endotoxins: The endotoxin level should be less than 2EU/mL with and action level of 1 EU/mL. To be considered ultrapure dialysate, the endotoxin level should be less than 0.03 EU/mL.

What is a pyrogenic reaction?

Introduction. Pyrogen reaction is a febrile phenomenon caused by infusion of solution contaminated, and commonly manifested by cold, chill and fever [1].

What do carbon tanks remove?

Carbon filtration is used to remove chlorine, chloramines, and low molecular weight organics through the process of adsorption. Adsorption is the process by which a vapor, dissolved material or very small particle adheres to the surface of a solid.

What is the amount of saline required to prime the dialyzer?


How much saline should be used to prime the dialyzer? Priming the dialyzer will require 500 to 1000 mL of saline. The amount depends on the type of dialyzer and whether it has been reprocessed.

Why does dialysis fluid need to be changed regularly?

As the dialysis fluid has no urea in it, there is a large concentration gradient - meaning that urea moves across the partially permeable membrane, from the blood to the dialysis fluid, by diffusion. This is very important as it is essential that urea is removed from the patients' blood.

What are the types of dialysis?

The two main types of dialysis, hemodialysis and peritoneal dialysis, remove wastes and excess water from the blood in different ways. Hemodialysis removes wastes and water by circulating blood outside the body through an external filter, called a dialyzer, that contains a semipermeable membrane.