What does high Urea Nitrogen mean?

Urea nitrogen levels tend to increase with age. Infants have lower levels than other people do, and the range in children varies. 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.

What is a normal BUN creatinine ratio?

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.

What are dangerous levels of Bun?

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.

What drugs increase BUN levels?

Other drugs, such as certain antibiotics and diuretics, may increase your BUN levels. Commonly prescribed medications that may raise your BUN levels include: amphotericin B (AmBisome, Fungizone) carbamazepine (Tegretol) cephalosporins, a group of antibiotics. furosemide (Lasix) methotrexate.

What causes elevated BUN levels?

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 causes low bun results?

Low values. A low BUN value may be caused by a diet very low in protein, malnutrition, or severe liver damage. Drinking excessive amounts of liquid may cause overhydration and cause a low BUN value. Women and children may have lower BUN levels than men because of how their bodies break down protein.