How to Read Kidney Blood Test Results: Understanding Creatinine, BUN, and GFR

Learn how to interpret kidney blood test results by understanding key markers like Creatinine, BUN, and GFR for better kidney health insights.

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Reading kidney blood test results involves looking at key indicators such as Creatinine, Blood Urea Nitrogen (BUN), and the Glomerular Filtration Rate (GFR). Creatinine is a waste product from muscle activity; high levels may indicate kidney dysfunction. BUN measures the amount of nitrogen in your blood from the waste product urea; elevated levels suggest your kidneys aren't working efficiently. GFR estimates how well your kidneys filter waste and is a primary marker of kidney function. A GFR below 60 for 3 months or more indicates chronic kidney disease. Always consult with a healthcare professional for a comprehensive interpretation.

FAQs & Answers

  1. What does high creatinine in a blood test mean? High creatinine levels may indicate impaired kidney function, as creatinine is a waste product normally filtered out by healthy kidneys.
  2. What is a normal GFR range? A normal Glomerular Filtration Rate (GFR) is typically 90 mL/min/1.73 m² or higher, with values below 60 sustained over 3 months suggesting chronic kidney disease.
  3. Why is Blood Urea Nitrogen (BUN) important? BUN measures nitrogen in your blood from urea waste; elevated BUN levels can signal the kidneys aren't filtering waste efficiently.

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