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The following factors can lead to elevated BUN levels: kidney damage, failure, or disease. dehydration. shock. urinary tract blockages or disease. gastrointestinal bleeding. heart attack. heart failure.

What is the normal lab for Bun?

What does a high BUN level mean in a blood test?

Generally, a high BUN level means your kidneys aren’t working well. But elevated BUN can also be due to: Dehydration, resulting from not drinking enough fluids or for other reasons. Urinary tract obstruction. Congestive heart failure or recent heart attack.

How do you lower BUN levels?

Proper hydration is the most effective way to lower BUN levels. A low-protein diet can also help lower BUN levels. A medication wouldn’t be recommended to lower BUN levels….Lower BUN levels can indicate:

  1. liver failure.
  2. malnutrition.
  3. severe lack of protein in the diet.
  4. overhydration.

Is a BUN level of 40 bad?

In patients with GI bleeding and no renal disease, a BUN level over 40 mg/dL with a normal creatinine level suggests significant GI blood loss. A BUN level greater than 85 mg/dL with a normal creatinine level may indicate a loss of 2 or more units of blood into the GI tract.

A BUN test measures the level of urea nitrogen in the blood using a standard blood sample. BUN stands for blood urea nitrogen, which is a natural byproduct of the breakdown of protein. According to the American Association for Clinical Chemistry , doctors perform BUN tests to assess kidney health.

What causes elevated BUN levels?

Normal levels. Normal levels of BUN are between 10 to 20 mg/dL for an adult and 5 to 18 mg/dL for a child.

What does a high bun lab mean?

Blood Urea Nitrogen (BUN) is the amount of urea nitrogen present in the blood and BUN test is a laboratory blood test performed to check its levels. The term, “urea nitrogen present in the blood”, can be explained as, the amount of nitrogen present in the blood that comes from urea. Urea is an end product formed after food metabolism and digestion.