Understanding BUN in Blood Test
Blood Urea Nitrogen (BUN) is a common test done to measure the amount of nitrogen in your blood that comes from the waste product urea. Here is everything you need to know about BUN in a blood test.
What is BUN?
BUN is a waste product produced when your liver breaks down protein. It is filtered out of your blood by the kidneys and excreted in urine. A high BUN level may indicate kidney disease or dehydration, while a low BUN level may be a sign of liver disease or malnutrition.
Importance of BUN Test
The BUN test is often used to check for kidney function. It can help diagnose conditions such as kidney disease, heart failure, dehydration, and urinary tract obstruction. It is commonly done as part of a comprehensive metabolic panel.
Interpreting BUN Results
A normal BUN level ranges from 7 to 20 mg/dL. Higher levels may indicate kidney problems, while lower levels may indicate liver or nutrition issues. It is important to consult your healthcare provider to interpret your BUN results in the context of your overall health.
Case Study: Sarah’s BUN Test
Sarah, a 45-year-old woman, had a routine blood test that showed her BUN level was elevated at 30 mg/dL. Her doctor ordered further tests and diagnosed her with early-stage kidney disease. With early intervention, Sarah was able to manage her condition effectively.
Statistics on BUN Tests
- Over 14% of adults over 20 in the US have elevated BUN levels.
- BUN tests are one of the most commonly ordered blood tests in healthcare.
- High BUN levels are more common in older adults and those with chronic kidney disease.
