Why is Bun/Creatinine Ratio important?

This ratio helps differentiate between prerenal (dehydration, heart failure), intrinsic renal, and postrenal (obstruction) causes of elevated kidney markers. A high ratio often indicates dehydration or upper GI bleeding, while a low ratio may suggest liver disease or malnutrition. It's essential for accurate assessment of kidney function and fluid status.

What are the symptoms of abnormal Bun/Creatinine Ratio levels?

High ratio: Dehydration symptoms (thirst, dry mouth, decreased urination, dizziness), GI bleeding signs (dark stools, vomiting blood). Low ratio: May have symptoms of liver disease or protein malnutrition.

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Bun/Creatinine Ratio

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The BUN to Creatinine ratio compares two kidney function markers to help identify the cause of kidney dysfunction and assess hydration status.

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This ratio helps differentiate between prerenal (dehydration, heart failure), intrinsic renal, and postrenal (obstruction) causes of elevated kidney markers
A high ratio often indicates dehydration or upper GI bleeding, while a low ratio may suggest liver disease or malnutrition
It's essential for accurate assessment of kidney function and fluid status

BUN / Creatinine

The BUN to Creatinine ratio compares two kidney function markers to help identify the cause of kidney dysfunction and assess hydration status

High ratio: Dehydration symptoms (thirst, dry mouth, decreased urination, dizziness), GI bleeding signs (dark stools, vomiting blood).
Low ratio: May have symptoms of liver disease or protein malnutrition.

High ratio (>20:1): Dehydration, GI bleeding, high protein diet, heart failure, shock, catabolic states.
Low ratio (<10:1): Liver disease, low protein diet, malnutrition, rhabdomyolysis, SIADH.

This is a calculated biomarker derived from other test results in your panel. It provides additional clinical insights by combining multiple measurements into a single meaningful ratio or index.

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Bun/Creatinine Ratio

About Bun/Creatinine Ratio

How It's Calculated

Why Bun/Creatinine Ratio Matters

Symptoms of Bun/Creatinine Ratio

What Affects Bun/Creatinine Ratio Levels

How it works: 4 easy steps

Choose your tests

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Clear, personalized results

Optimize your health

Our Comprehensive Panels

Explore Other Tests

Basophils

Apolipoprotein B

Nitrite

Monocyte-to-Lymphocyte Ratio (MLR)

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