Tests and diagnosis

Different kinds of tests may be used to diagnose or investigate kidney conditions, or to show whether your kidneys or other parts of your body are damaged. Tests may also be used to understand how well a treatment is working.

CKD tests

Kidney function tests explained

Understand the main blood and urine tests that show how well your kidneys are working, including your eGFR or estimated glomerular filtration rate.

  • Understanding your CKD blood and urine test results

    Regular blood and urine tests are important in all stages of chronic kidney disease (CKD).

  • Tests for chronic kidney disease

    If your GP suspects you may be at risk of chronic kidney disease (CKD), they’ll carry out some tests. We explain what the tests involve, what they look for and what the results mean.

  • Kidney biopsy

    This information page aims to answer some of the questions you may have about kidney biopsies. It will explain what to expect on the day of the biopsy, as well as giving information on the possible risks and complications.

Download a kidney test results chart

Use our free Understanding your blood and urine test results chart to help you interpret your regular test results and make informed decisions about your health.

Download the Understanding your blood and urine test results chart

Dealing with a diagnosis of chronic kidney disease (CKD)

There is lots of information available on the medical aspects of being diagnosed with chronic kidney disease (CKD). However, it is also important to consider the emotional impact that a diagnosis is likely to have. Read on for advice on further support if you have been diagnosed with moderate or severe CKD.
CKD diagnosis
Remote care

Preparing for a kidney consultation

Healthcare appointments over the phone or on video call are becoming increasingly common for people with kidney disease. We explain what happens and how to get the best out of your remote appointment.
Remote kidney care: getting the best from your appointment

Children's kidney health: tests and diagnosis

  • Computerised tomography (CT) scan

    A special kind of X-ray test to build up a detailed picture of the inside of the body.

  • Intravenous urogram (IVU)

    Looks at the urinary system to check for problems – a special dye is injected into the body and X-ray images are taken.

  • Ultrasound scan

    Uses sound waves to look at the inside of the body, such as the kidneys and other parts of the urinary system.