Serum Urea Level High. If you drink plenty of water this value will come down immediately and likewise if you fast it will go upThere is usually no significance of rising urea alone has no bad effects. The range is wide because of normal variations due to protein intake endogenous protein catabolism state of hydration hepatic urea synthesis and renal urea excretion.
Kidney disease kidney failure. Other possible causes of an elevated BUN include dehydration and heart failure. What is the normal urea level.
Consideration has been given to the use of age-related reference intervals for urea.
Increased urea production obstruction of urinary outflow and acute renal failure can also be the cause. My own urea is around 19mmoll which is well above normal but less than the dialysis target which may be partly why Im not on dialysis yet. Blood urea nitrogen BUN and creatinine tests can be used together to find the BUN-to-creatinine ratio BUNcreatinine. Specific symptoms can warn that this waste product from the liver is not being eliminated correctly for example.