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Diagnosis of Chronic Kidney Disease

  • Cynthia M. Johnson, MA
Publication Type:

Condition InDepth

Diagnosis of Chronic Kidney Disease

The doctor will ask about symptoms and health history. A physical exam will be done.

These tests may be done:

Blood Tests

Blood tests measure the amount of wastes, proteins, or other products in the blood. They are done to find out how well kidneys are working. Tests are done to look at:

  • Blood urea nitrogen (BUN)—Urea nitrogen is a waste product that is filtered by the kidneys. This test measures the amount that is found in the blood.
  • Creatinine —This is a waste product from the muscles that is filtered by the kidneys.
  • Complete blood count (CBC)—This test measures the number of blood products to see if they are in a normal range.
  • Other products in the blood, such as minerals, hormones, or proteins.


  • Chronic kidney disease. Merck Manual Professional Version website. Available at: https://www.merckmanuals.com/professional/genitourinary-disorders/chronic-kidney-disease/chronic-kidney-disease.
  • Chronic kidney disease. National Institute of Diabetes and Digestive and Kidney Diseases website. Available at: https://www.niddk.nih.gov/health-information/kidney-disease/chronic-kidney-disease-ckd.
  • Chronic kidney disease (CKD). Family Doctor—American Academy of Family Physicians website. Available at: https://familydoctor.org/condition/chronic-kidney-disease-ckd.
  • Overview of chronic kidney disease (CKD) in adults. EBSCO DynaMed website. Available at: https://www.dynamed.com/condition/overview-of-chronic-kidney-disease-ckd-in-adults.


  • Mark S. Itzkowitz, MD, JD
Last Updated:

This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.