What is BUN blood test?

What is BUN blood test?

Overview. A common blood test, the blood urea nitrogen (BUN) test reveals important information about how well your kidneys are working. A BUN test measures the amount of urea nitrogen that’s in your blood.

What does a BUN of 7 mean?

The normal range of blood urea nitrogen (BUN) is between 7 and 20 mg/dL or 2.5 and 7.1 mmol/L. There may be slight variations between labs. A decline in kidney function can cause an increase in BUN levels. There is no definite value of BUN that would diagnose kidney failure.

What does a BUN of 8 mean?

Note that BUN values remain within the normal range until more than 50% of renal function is lost. Within that range, however, a doubling of the values (e.g., BUN rising from 8 to 16 mg/dl) may mean a 50% fall in kidney function [2].

What is normal BUN and creatinine?

BUN/Creatinine Ratio Normal Range The normal range for BUN/Creatinine ratio is anywhere between 5 – 20 mg/dL. BUN/Creatinine ratio increases with age, and with decreasing muscle mass [6].

Is a BUN level of 6 bad?

General reference ranges for a normal BUN level are as follows: Adults up to 60 years of age: 6-20 mg/dL. Adults over 60 years of age: 8-23 mg/dL.

Is a BUN level of 9 Bad?

The ideal ratio of BUN to creatinine falls between 10-to-1 and 20-to-1. Having a ratio above this range could mean you may not be getting enough blood flow to your kidneys, and could have conditions such as congestive heart failure, dehydration, or gastrointestinal bleeding.

Is a BUN level of 7 Bad?

The normal BUN level is between about 7 and 21 milligrams per deciliter (mg/dL). Unless this level is greater than 60 mg/dL, it may not help your healthcare provider measure your kidney health. A better measure is the ratio of BUN to creatinine found in your blood.

How do I reduce BUN?

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 BUN of 27 too high?

The normal BUN level is between about 7 and 21 milligrams per deciliter (mg/dL). Unless this level is greater than 60 mg/dL, it may not help your healthcare provider measure your kidney health.

What is a normal BUN and creatinine level?