What does high BUN levels indicate?

Answer 1

High levels of BUN may indicate kidney disease or failure; blockage of the urinary tract by a kidney stone or tumor; a heart attack or congestive heart failure; dehydration; fever; shock; or bleeding in the digestive tract.

Answer 2

BUN, or blood urea nitrogen, is a measure of kidney function using its ability to remove urea from the circulation into the urine . In most adults it is below 10. Lower numbers generally only occur in children (they have less musculature) or elderly adults who may have muscle-wasting diseases and less muscle.

Answer 3

Low levels of BUN may indicate overhydration, malnutrition, celiac disease [a disease characterized by the inability ot tolerate foods containing wheat protein (gluten)], liver damage or disease, or use of corticosteroids.

Answer 4

kidney isn't properly removing toxins from the blood