The blood urea nitrogen or BUN is a blood test that measures the amount of urea nitrogen in the bloodstream. It reflects how well your kidneys are. When a person is dehydrated, false results might be obtained as BUN levels increase when blood is concentrated. Elevated BUN levels indicate dehydration, excessive protein intake and impaired renal function. Low BUN levels indicate over hydration, liver damage and malnutrition.
Blood Urea Nitrogen: What it is & Why is Yours High or Low? ... BUN, or Blood Urea Nitrogen, is a test performed on the standard chemistry panel your doctor performs. He or she uses it to rule out kidney disease, but it can be abnormal for other reasons. What does it tell you about your health, function or disease? ... http://www.metaboliceffect.com/blood-urea-nitrogen-what-it-is-why-is-yours-high-or-low/#lightbox/0/
Creatinine is a waste product produced by muscle metabolism. Kidneys filter creatinine to be excreted through the urine and the renal function is reflected. Elevated levels indicate renal impairment. The opposite happens for urinary creatinine clearance; during renal impairment, urinary creatinine is extremely low. Measuring urinary creatinine clearance during unilateral kidney impairment is insignificant as the healthy kidney can still excrete creatinine through the urine.
What is the relationship of diarrhea and kidney disease ? Diarrhea is one gastrointestinal tract symptom of kidney disease. Excessive accumulation of creatinine, blood urea nitrogen and other wastes in the patient’s body can cause many sick feeling such as fatigue, nausea, poor appetite. If left untreated, patients can develop serious vomiting, indigestion, diarrhea, low blood volume or even rapid decline of kidney functions.
How to Lower High Blood Urea Nitrogen (BUN) in Kidney Disease Blood urea nitrogen (BUN) level is used to evaluate how your kidneys are functioning.High blood urea nitrogen level may indicate kidney impairment.