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Your Kidney Test Results (Fact Sheet)

Chronic Kidney Disease (CKD) Tests Results

  • Serum Creatinine and Estimated Glomerular Filtration Rate (eGFR)
    • eGFR estimates how well your kidneys are filtering blood. As kidney disease gets worse, the creatinine goes up and the eGFR goes down.
    • CKD is an eGFR less than 60
  • Urine Albumin-to-Creatinine Ratio (UACR)
    • Urine albumin checks for kidney damage. The lower the result, the better.
    • CKD is more than 30

Other Important Tests

  • Blood Pressure
    • High blood pressure makes the heart work harder and can damage blood vessels in the kidneys.
  • Serum Albumin
    • Albumin is a protein that helps measure how well you are eating.
    • Normal: 3.4 to 5.0*
  • Bicarbonate
    • Bicarbonate measures the acid level in your blood.
    • Normal: More than 22
  • Blood Urea Nitrogen (BUN)
    • BUN checks how much urea, a waste product, is in your blood.
    • Normal: Less than 20
  • Potassium
    • Potassium affects how your nerves and muscles are working. High or low levels can be dangerous.
    • Normal: 3.5 to 5.0*
  • Calcium
    • Calcium keeps your bones strong and your heart rhythm steady. CKD can lower the amount of calcium in your bones.
    • Normal: 8.5 to 10.2*
  • Phosphorus
    • Phosphorus is important for strong bones and healthy blood vessels. High levels may cause soft bones, hard blood vessels and itchy skin.
    • Normal: 2.7 to 4.6*
  • Parathyroid Hormone (PTH)
    • PTH controls the calcium and phosphorus levels in your blood. It is needed to keep bones and blood vessels healthy.
    • Normal: Less than 65
  • Vitamin D
    • Vitamin D is important for bones and heart health.
    • Normal: 20 or more
  • A1C (for patients with diabetes)
    • A1C estimates average blood sugar levels over 2 to 3 months.
  • Total Cholesterol
    • Cholesterol measures the amount of fat in your blood. Too much cholesterol can clog blood vessels or arteries in the heart and kidneys.
    • Normal: Less than 200
  • HDL Cholesterol
    • HDL is the good cholesterol and clears bad fats out of your arteries.
    • Normal: More than 40
  • LDL Cholesterol
    • LDL is the bad cholesterol and can clog your arteries.
    • Normal: Less than 100
  • Triglycerides
    • Triglyceride is a type of fat in the blood.
    • Normal: Less than 150
  • Hemoglobin (Hgb)
    • Low hemoglobin is a sign of anemia. You may feel tired if you have anemia.
    • Normal: 12 to 17*

*Normal ranges may vary.


This content is provided as a service of the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), part of the National Institutes of Health. The NIDDK translates and disseminates research findings through its clearinghouses and education programs to increase knowledge and understanding about health and disease among patients, health professionals, and the public. Content produced by the NIDDK is carefully reviewed by NIDDK scientists and other experts.

This information is not copyrighted. The NIDDK encourages people to share this content freely.


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