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Estimated Glomerular Filtration Rate Testing (eGFR)

The Estimated Glomerular Filtration Rate test is also known as a Estimated Glomerular Filtration Rate test.

All you need to know about testing Estimated Glomerular Filtration Rate levels with a laboratory test

  • What is the Estimated Glomerular Filtration Rate test for?
  • How to test Estimated Glomerular Filtration Rate?
  • What if Estimated Glomerular Filtration Rate results are high?
  • What if Estimated Glomerular Filtration Rate results are low?
  • Who should take the Kidney Function Venous Blood test?
  • Can a GFR test identify kidney disease in its early stages?
  • Are there any risks or precautions to be considered while taking the GFR test?
  • Does a low GFR result always mean I have kidney disease?
  • What should I do if my GFR test results are lower than normal?
  • What should I do if my GFR test results are higher than normal?
  • How do I interpret the results of the GFR test?
  • How do I use the GFR test kit?
  • How does the GFR test work?
  • What symptoms can the GFR test help diagnose?
  • What conditions does the GFR test help detect?
  • What is the Glomerular Filtration Rate test?

What Is The Estimated Glomerular Filtration Rate Test For?

Your glomerular filtration rate (GFR) is a calculation made using your creatinine test levels, age and gender. It estimates how much blood passes through the microscopic filters - glomeruli - in the kidneys that are responsible for filtering waste products from your bloodstream. 

As such GFR is the best way to assess your overall level of kidney function.

How To Test Estimated Glomerular Filtration Rate

By buying a laboratory test kit with professional nurse or clinic collection, you can accurately measure Estimated Glomerular Filtration Rate for total reassurance.

Professional analysis in an accredited laboratory ensures rapid result delivery.

The Vitall Kidney Function nurse or clinic test kit includes a Estimated Glomerular Filtration Rate test and is available for just £199.00.

Tests which include a Estimated Glomerular Filtration Rate test:

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Health is in your hands
Take Control Of Your Health | Home Blood Testing Services

Kidney Function Test Kit

Kidney Function test kit
Kidney Function Home Test Kit UK

Kidney Function Test Kit

Assess normal kidney function and your electolytes

£199.00

View Full Details ›
Health is in your hands
Health is in your hands
Take Control Of Your Health | Home Blood Testing Services

Kidney Function Essentials Test Kit

Kidney Function Essentials test kit
Kidney Function Essentials Home Test Kit UK

Kidney Function Essentials Test Kit

Assess normal kidney function and indicate kidney damage

£79.00

View Full Details ›

What if Estimated Glomerular Filtration Rate Results Are High?

A high GFR generally reflects a good level of kidney function.

A high result is not usually linked to follow-up or further review.

What if Estimated Glomerular Filtration Rate Results Are Low?

Low GFR indicates impaired kidney function. In general, the lower the GFR, the poorer the kidney function.

A low result can be temporary due to factors that can affect kidney function, such as kidney infection, kidney stones, or urinary obstruction. It can also reflect a longer-term deterioration in kidney function.

This finding is often treated as clinically significant and may be reviewed further to clarify the cause.

Who Should Take This Test?

Measure your Estimated Glomerular Filtration Rate levels and assess normal kidney function and your electolytes with a Kidney Function nurse or clinic centrifuged venous bloodtest kit

You get the convenient testing with the reassurance of professional clinical analysis. Your results are delivered quickly & securely online.

This Kidney Function Test is advised if you:

  • want the convenience of home testing without waiting for a GP appointment;
  • need a high quality, clinically accredited test done in a professional clinical laboratory.

Can a GFR test identify kidney disease in its early stages?

Yes, the GFR test is an important tool used to diagnose early-stage kidney disease, often before symptoms become evident. Early detection can lead to more effective treatment and slow the progression of the disease.

Are there any risks or precautions to be considered while taking the GFR test?

The GFR finger-prick test is typically safe with minimal risks. However, if you are taking any medication that may affect the test results, it is advisable to consult your healthcare provider prior to taking the test.

Does a low GFR result always mean I have kidney disease?

A single low result may not necessarily mean you have kidney disease. Factors such as age, sex, body size, and others can affect GFR. It's best to conduct the test again to verify the results, and refer to your healthcare provider for further advice.

What should I do if my GFR test results are lower than normal?

Lower than normal GFR results might suggest a lower kidney function. Consult your GP if your results are lower than normal. They may require additional tests or treatments based on your individual health scenario.

What should I do if my GFR test results are higher than normal?

High GFR results are relatively unusual but may be due to certain conditions such as pregnancy or an excessive level of blood supply in the kidneys. If such an outcome arises, it would be advisable to consult your GP who can offer guidance based on your specific circumstances.

How do I interpret the results of the GFR test?

Your GFR results will show an estimate of your level of kidney function. A lower than normal result may indicate kidney disease. However, your healthcare provider is best positioned to interpret these results in the context of your overall health and medical history.

How do I use the GFR test kit?

Our GFR test kit involves a simple finger-prick test that can be conveniently done at home. The kit comes with detailed instructions on how to collect and package your blood sample. After collection, return the sample to the lab using the prepaid envelope included in the kit.

How does the GFR test work?

Using our self-collection finger-prick test kit, you would collect a small sample of blood. On return to a UKAS accredited lab, the level of creatinine in your blood is measured. Since creatinine is a waste product that healthy kidneys filter out, higher creatinine levels suggest impaired kidney function. The eGFR is then calculated using this creatinine level, alongside your age and sex.

What symptoms can the GFR test help diagnose?

Symptoms of kidney disease may not appear until the condition is fairly advanced. However, a GFR test might be recommended if you are experiencing symptoms such as swelling of the legs, hands or face, fatigue, skin rash, or changes in urine frequency and colour.

What conditions does the GFR test help detect?

The GFR test specifically helps to identify chronic kidney disease (CKD). It also assists in monitoring the progression and severity of CKD if you've already been diagnosed. Conditions that may lead to CKD include hypertension, diabetes, and heart disease, among others.

What is the Glomerular Filtration Rate test?

The Glomerular Filtration Rate (GFR) test, also known as Estimated Glomerular Filtration Rate (eGFR), measures your level of kidney function and helps in determining the stage of kidney disease. It estimates how much blood passes through glomeruli - tiny filters in the kidneys that help remove waste from the blood - per minute.

Other Biomarkers Often Tested With Estimated Glomerular Filtration Rate

Urine, swab or bood test. This test is available to buy online Chloride
Urine, swab or bood test. This test is available to buy online Creatinine
Urine, swab or bood test. This test is available to buy online Estimated Glomerular Filtration Rate
Urine, swab or bood test. This test is available to buy online Potassium
Urine, swab or bood test. This test is available to buy online Sodium
Urine, swab or bood test. This test is available to buy online Urea

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