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Glucose in Dialysate Fluid (Substance Concentration)

Published: August 9, 2026Updated: August 16, 2026

This test measures the amount of glucose present in the fluid that passes through a dialysis machine during kidney dialysis treatment.

Quick summary

["Knowing your glucose levels in dialysis fluid helps healthcare providers monitor how well your dialysis is working and manage your blood sugar."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
54495-7
Short code
Glucose p dialysis SerPl-sCnc
Synonyms
Glucose p dialysis SerPl-sCnc
Category
glucose
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Ref low
70
Ref high
100
Critical range
50 N/A – 400 N/A
Fasting
true
Population
adult
Sex
all
Age range
18–65 years
CPT
82947
SNOMED
260395008
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What Is This Test Measuring?

Glucose is a simple sugar that serves as the primary energy source for your body. During dialysis, a special fluid is used to clean your blood. This test specifically looks at glucose levels in the dialysate fluid, which is the fluid that exchanges with your blood through the dialysis machine. It helps ensure that the dialysis process is removing waste products and excess fluids effectively while maintaining proper glucose balance.

Why Might You Need This Test?

Healthcare providers may order this test if you’re on dialysis to check how well your glucose levels are being controlled. High or low glucose levels in the dialysate fluid can indicate issues with your dialysis setup, such as improper fluid flow, contamination, or problems with the dialyzer (the device that filters your blood). It can also help prevent complications like infections or metabolic imbalances.

How Is This Test Performed?

This test is not drawn from your blood or urine but is measured directly from the dialysate fluid collected during your dialysis session. The fluid is analyzed using a specialized method (likely automated chemistry) to determine the glucose concentration.

What Does the Result Mean?

The result tells your healthcare team whether the glucose levels in the dialysate fluid are within expected ranges for your treatment. Abnormally high or low readings may signal a need for adjustments to your dialysis settings, such as fluid composition or flow rate.

Reference range

Fasting: 70-100 mg/dLN/A

Specimen: serum

Fasting for 8-12 hours required. Water is permitted. Avoid chewing gum and smoking before the test.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

How often is this test typically performed?
This test is usually checked during each dialysis session or as recommended by your dialysis team. Some centers may perform it more frequently if there are concerns about glucose balance or machine function.
What could cause abnormal glucose levels in dialysate fluid?
Abnormal glucose levels may result from contamination of the dialysate fluid, incorrect dialysate formulation, or problems with the dialysis machine’s filtration process. Your healthcare provider may also check for signs of infection or other complications that could affect glucose measurements.
Can I influence the results of this test?
While you cannot directly control the glucose levels in the dialysate fluid during dialysis, your healthcare team will adjust settings like dialysate concentration or flow rate based on the results. Following your dialysis schedule and reporting any symptoms of infection or machine issues promptly can help ensure accurate readings.
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy