What Does a High BUN-to-Creatinine Ratio Mean in a KFT Test?

A high BUN-to-creatinine ratio often indicates dehydration, as reduced kidney filtration increases urea concentration relative to creatinine. Other potential causes include gastrointestinal bleeding, high protein intake, or heart failure, which can alter waste clearance. Conversely, low ratios may suggest liver disease or malnutrition. Interpreting this ratio alongside other KFT results helps pinpoint underlying issues and determine appropriate interventions, such as rehydration or dietary adjustments.