Commonly, blood urea nitrogen is used to measure how your kidneys work. Then, does elevated BUN mean renal insufficiency?
Firstly, let’s form a basic understanding about blood urea nitrogen.
BUN refers to the breakdown product of nitrogenous organic compounds in the body. In right condition, healthy kidneys can help excrete the wastes, toxins, etc out of the body and keep it at a constant level. And the normal value is 1.75-8.05mmol/L.
When kidneys are severely damaged, the excretion of toxins will be affected, as a result, the BUN level will increase accordingly. And various renal parenchyma lesions including glomerulonephritis, interstitial nephritis, acute kidney failure or chronic kidney failure, etc can all lead to this.
Does elevated BUN mean renal insufficiency?
To be honest, elevated BUN level does not necessarily mean kidneys are severely injured and renal insufficiency. Actually, many factors can contribute to its occurrence, such as, gastrointestinal bleeding, urinary tract obstruction, severe infections, heart failure, fever, dehydration, shock, corticosteroid drugs, excess ingestion of protein, etc can cause persistent or temporary elevation of BUN.
Knowledge about renal insufficiency
Renal insufficiency refers to kidneys no longer have enough ability to maintain a normal state of health. When kidney damage increases to a certain degree, kidney function will continue to deteriorate.
To prevent this from happening, two works must be done well:
1. Regular check-ups. Such as, kidney function test, blood test, urine test, CT scan, ultrasound, MRI and so on. In addition, we also provide patients with some special tests, if you have interest in this, please consult with our Online Doctor directly!
2. Effective treatments to promote kidney function. We suggest patients with a set of systematic treatments, for instance, Hot Compress Therapy, foot bath therapy, enema therapy, etc. And each treatment has its own advantages in fighting kidney disease.
If you still have anything unclear about elevated BUN level or renal insufficiency, you can inform us by leaving us message to email@example.com. Best wishes!
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