#Bun test normal range full
#Bun test normal range professional

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.

#Bun test 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. Staying hydrated and consuming less protein can help lower blood urea nitrogen levels.In general, around 6 to 24 mg/dL (2.1 to 8.5 mmol/L ) is considered normal. Low levels of blood urea nitrogen can indicate a low-protein diet, severe liver damage, or malnutrition. What does a low blood urea nitrogen level mean? To find the root cause of your elevated blood urea level, additional testing will be required. Additionally, factors that cause decreased blood flow to the kidneys, such as congestive heart failure or dehydration, may cause elevated blood urea nitrogen levels. What causes high blood urea nitrogen?Įlevated blood urea nitrogen can result from complications related to diabetes or high blood pressure, conditions that block the flow of urine, such as kidney stones, or damage to your kidneys from an infection or autoimmune disease. While an elevated level usually indicates poor kidney function, it can also be due to other conditions, including dehydration, obstruction of the urinary tract, congestive heart failure, and bleeding in the GI tract. ¹ What does a high blood urea nitrogen level mean? The American Board of Internal Medicine considers the reference range for blood urea nitrogen to be 8–20 mg/dL ³, but this may be affected by your age and is dependent on the lab you use for your test. What is a normal blood urea nitrogen level? See creatinine for more information.Īdditional testing of kidney function may be needed if your blood urea nitrogen levels are abnormal. Since kidney damage can result in elevated levels of creatinine, testing this biomarker should also be considered. It can also be used, in conjunction with other blood tests, to help diagnose other diseases, including liver damage, urinary tract obstruction, congestive heart failure, and bleeding in the GI tract.

Symptoms of kidney disease include changes to urinary function, swelling in your limbs, muscle cramps, nausea and vomiting, loss of appetite, and fatigue ².

#Bun test normal range professional

You should consider a blood urea nitrogen test if your healthcare professional believes you have kidney disease or if your kidney function needs to be assessed due to chronic conditions, including diabetes and high blood pressure ¹. When should I test for blood urea nitrogen? Women may have lower blood urea levels during the second or third trimester of their pregnancies. Women and children tend to have lower blood urea levels, and all individuals tend to have rising blood urea levels as they age. Which factors affect blood urea nitrogen?Īge and sex are factors that can affect blood urea levels. High levels of urea nitrogen indicate that your kidneys may not be functioning well to filter your blood. The amount of urea nitrogen in your bloodstream, in conjunction with other biomarkers, can be used as an indicator of kidney health. Urea is a waste product produced by the liver, filtered out of the blood by the kidneys, and removed from the body in urine.

Blood urea nitrogen is used to test how well your kidneys are working.