BUN / Creatinine Ratio

What This Marker Means

This ratio helps determine whether kidney changes are due to dehydration or underlying dysfunction. High ratios usually reflect dehydration, while low ratios may suggest liver issues or insufficient protein intake.

How Alcohol Affects This Marker

Alcohol-induced dehydration often elevates this ratio. Poor appetite or skipped meals when drinking can reduce protein intake, lowering the ratio.

How to Discuss With Your Doctor

Ask whether your ratio suggests dehydration versus true kidney dysfunction. Tell your doctor if you consumed alcohol or were dehydrated near the time of the test.