Your doctor will want to check your kidney health, usually by testing your urine and blood. If you have diabetes, you know how important it is to prevent complications like CKD. But the only way to know how well your kidneys are working is to get tested. The good news is that if you find and treat kidney disease early, you may be able to keep CKD from getting worse and prevent other health problems such as heart disease. Diabetes is a leading cause of CKD, which often causes no symptoms until your kidneys are badly damaged. Knowledge is power-learn about what these tests do and what your results could mean.Ĭhronic kidney disease (CKD) is a condition in which the kidneys become damaged over time and cannot filter blood as well as they should. The sooner you know the health of your kidneys, the sooner you can take steps to protect them. Your doctor will likely recommend you have one or more kidney tests to check the health of your kidneys. If you have diabetes, you have a higher risk for chronic kidney disease. If kidney damage is a concern, ask your doctor what factors may be contributing to the damage and what steps you can take to try to control them.If you have diabetes, your doctor will likely recommend you have one or more kidney tests to check the health of your kidneys. Certain medications, such as some antibiotics.Congestive heart failure or recent heart attack.Dehydration, resulting from not drinking enough fluids or for other reasons.Generally, a high BUN level means your kidneys aren't working well. Infants have lower levels than other people do, and the range in children varies. Urea nitrogen levels tend to increase with age. In general, around 6 to 24 mg/dL (2.1 to 8.5 mmol/L) is considered normal.īut normal ranges may vary, depending on the reference range used by the lab and your age. Results of the BUN test are measured in milligrams per deciliter (mg/dL) in the United States and in millimoles per liter (mmol/L) internationally. You can return to your usual activities immediately. The blood sample is sent to a lab for analysis. What you can expectĭuring the BUN test, a member of your health care team takes a sample of blood by inserting a needle into a vein in your arm. Your doctor will give you specific instructions. If your blood sample will be used for additional tests, you may need to fast for a certain amount of time before the test. If your blood sample is being tested only for BUN, you can eat and drink normally before the test. The GFR estimates the percentage of kidney function you have. To do this, you may have a blood sample taken to calculate your estimated glomerular filtration rate (GFR). Your doctor may also test how well your kidneys are removing waste from the blood. High levels of creatinine in your blood may be a sign of kidney damage. Creatinine is another waste product that healthy kidneys filter out of your body through urine. If kidney problems are the main concern, the creatinine levels in your blood will likely also be measured when your blood is tested for urea nitrogen levels. As part of a blood test group to help diagnose a number of other conditions, such as liver damage, urinary tract obstruction, congestive heart failure or gastrointestinal bleeding - although an abnormal BUN test result alone doesn't confirm any of these conditions.To help determine the effectiveness of dialysis treatment if you're receiving hemodialysis or peritoneal dialysis.If your kidney function needs to be evaluated, especially if you have a chronic condition such as diabetes or high blood pressure.If your doctor suspects that you have kidney disease or damage.
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