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Creatinine Clearance Calculator

Calculate your Creatinine Clearance.


About Creatinine Clearance Calculator

What is creatinine clearance test?

Creatinine is a waste product from muscle activity. A creatinine clearance test uses blood and urine samples to measure how well the kidneys filter blood. This comparison helps identify and monitor kidney issues.

The test evaluates kidney function and blood flow, often comparing 24-hour urine and blood creatinine levels to determine the glomerular filtration rate (GFR).

How is the creatinine clearance test done?

The test involves two main methods:

  • Urine Test: Collect 24-hour urine to measure creatinine levels.
  • Blood Test: A single blood sample calculates GFR using age, sex, and other factors.

Rising blood creatinine levels typically indicate a decreasing GFR.

How to interpret creatinine clearance test results?

Normal levels for adults:

  • Men: 110-150 mL/min
  • Women: 100-130 mL/min

Lower levels could indicate kidney disease or reduced blood supply to the kidneys. Results may vary based on age, gender, and lab standards.

What is serum creatinine level?

Serum creatinine reflects kidney filtration efficiency. Normal ranges:

  • Men: 0.74 to 1.35 mg/dL
  • Women: 0.59 to 1.04 mg/dL

Elevated levels may signal impaired kidney function.

What is Glomerular filtration rate (GFR)?

GFR measures how quickly kidneys filter blood. A GFR of less than 60 suggests kidney disease. Tracking GFR helps assess treatment effectiveness and disease progression.

Difference between serum creatinine and creatinine clearance

Serum creatinine measures blood levels, while creatinine clearance evaluates kidney waste elimination over 24 hours. Both tests provide insights into kidney function.

What to do if you have a low GFR?

Managing chronic kidney disease often involves controlling diabetes and high blood pressure through diet, exercise, and medication. Consult a nephrologist for further evaluation and treatment if needed.

How to know if you need other tests?

Abnormal creatinine clearance results may require repeating the test or additional diagnostics, such as blood tests, imaging, or kidney biopsy, to identify potential kidney damage.