#What is bun normal range full#

A decline in kidney function can cause an increase in BUN levels. There may be slight variations between labs. The normal range of blood urea nitrogen (BUN) is between 7 and 20 mg/dL or 2.5 and 7.1 mmol/L.

You’re experiencing persistent puffiness around your eyes.

You feel the need to urinate more often.

You’re more tired, have less energy or are having trouble concentrating.

Many medicines may cause a high BUN.Īdvertisements What are the signs that something is wrong with your kidneys? High BUN levels can also be caused by low blood flow to the kidneys caused by dehydration or heart failure. Kidney damage can be caused by diabetes or high blood pressure that directly affects the kidneys. What is a very high BUN level?Ī high BUN value can mean kidney injury or disease is present. If you have high creatinine levels, it may be indicative of kidney disease, and you should visit your doctor to establish the best course of treatment. You can lower creatinine levels by eating more fiber and less protein, limiting intense exercise, staying away from creatine, and trying supplements like chitosan. How can I lower my BUN and creatinine levels?

A medication wouldn’t be recommended to lower BUN levels. A low-protein diet can also help lower BUN levels. Proper hydration is the most effective way to lower BUN levels. General reference ranges for a normal BUN level are as follows: Adults up to 60 years of age: 6-20 mg/dL. Needing to go the bathroom (urinate) frequently or infrequently.In addition, your BUN levels may be checked if you are experiencing symptoms of later stage kidney disease, such as:

What are the symptoms of high BUN levels? Other possible causes of an elevated BUN include dehydration and heart failure.

#What is bun normal range full#

If your BUN is more than 20 mg/dL, your kidneys may not be working at full strength. Normal blood contains 7-20 mg/dl of urea. If your kidneys are not working well, the urea nitrogen will stay in the blood. What level of BUN indicates kidney failure? Urea nitrogen levels tend to increase with age. But normal ranges may vary, depending on the reference range used by the lab and your age. It increases with increased metabolism, and decreases with renal disease.In general, around 6 to 24 mg/dL (2.1 to 8.5 mmol/L ) is considered normal. With an elevated BUN, one way to distinguish between renal disease and increased production of urea (such as is seen in GI bleeding) is the BUN:creatinine ratio.A more sensitive (but more complex) test of kidney function is the creatinine clearance.Big changes in BUN occur only in fairly extreme circumstances.Small changes in BUN may occur from medications, dietary changes, and hydration status, and have little significance.BUN is a fast way to evaluate kidney function, but has some limitations.Increased metabolism of proteins, as is seen with GI bleeding, a high protein meal, heart attack, diabetes, or infection.Kidney malfunction, as is seen in glomerulonephritis, pyelonephritis, and shock.BUN (Blood Urea Nitrogen) Urea is a waste product, formed in the liver and excreted in the urine at a relatively constant rate.īUN (blood urea nitrogen) is a measurement of the nitrogen part of urea, and is therefore an indirect measurement of the urea in the bloodstream.