![]() Your BUN test results will typically be available within a few hours after this procedure. A pathologist, a specialist in studying diseases, will collect a small blood sample from your veins using a needle. When your doctor recommends a BUN test, you'll likely undergo a simple blood draw specifically targeting the measurement of BUN. This page was viewed the most from these cities in the last 30 days:Ĭhênedollé Mothern Ahi'ezer Vikna Winter Island (California) North Territory of Baja California Monkoto Sant'Elena Beuzeville-la-Guérard Kevin Islands Kachai Villers-le-Rond Kirad al-Baqqara Panthavoor Marikatti Bangor, Alabama Karaundzh, Azerbaijan Konthamuru Tuipui, Champhai Étavigny Kullanchavadi South Shore, South Dakota Ruages Bejjanki Ambapur, Gujarat Nord-Aurdal Vinjanampadu, Prakasam Baudignécourt Gudani Rogues, Gard Solesmes, Sarthe Bø, Nordland Alipur-1 Trancault Cagnano Pimpalgaon Turk Arbérats-Sillègue Gōtsu, Shimane Fontiers-Cabardès Vaux-le-Pénil Velet La Motte-Saint-Martin Flize Mandeure Remlap, Alabama Litteau Morton, Vienne Burggrafenamt Juba County Mithavirana A low BUN-to-creatinine ratio may be caused by a diet low in protein, a severe muscle injury called rhabdomyolysis, pregnancy, cirrhosis, or syndrome of inappropriate antidiuretic hormone secretion (SIADH).Important : How our patients treated their.Women and children may have lower BUN levels than men because of how their bodies break down protein.Drinking too much liquid may cause overhydration and cause a low BUN value.A low BUN value may be caused by a diet very low in protein, by malnutrition, or by severe liver damage.A very high BUN-to-creatinine ratio may be caused by bleeding in the digestive tract or respiratory tract. High BUN-to-creatinine ratios occur with sudden (acute) kidney problems, which may be caused by shock or severe dehydration.A high BUN value may be caused by a high-protein diet, Addison's disease, or tissue damage (such as from severe burns), or from bleeding in the gastrointestinal tract.Be sure to tell your doctor about all the nonprescription and prescription medicines you take. High BUN levels can also be caused by low blood flow to the kidneys caused by dehydration or heart failure. Your BUN value of 35 mg/dL is way too high. This analysis helps you to check if your BUN value is within normal range. Kidney damage can be caused by diabetes or high blood pressure that directly affects the kidneys. You received your blood test result with a BUN value of 35 mg/dL. A high BUN value can mean kidney injury or disease is present.A value that isn't in the normal range may still be normal for you. Your doctor will also look at your results based on your age, health, and other factors. ![]() Your lab report should show the range that your lab uses for each test. A BUN-to-creatinine ratio can help your doctor check for problems, such as dehydration, that may cause abnormal BUN and creatinine levels.Įach lab has a different range for what's normal. Blood urea nitrogen (BUN) and creatinine tests can be used together to find the BUN-to-creatinine ratio (BUN:creatinine). The level of creatinine in your blood also tells how well your kidneys are working-a high creatinine level may mean your kidneys are not working properly. Blood urea nitrogen to creatinine ratio (BUN:creatinine)Ī BUN test may be done with a blood creatinine test. Normal Value Range Negative Pregnancy Adult: 7 to 20 mg/dL or 2.5 to 7.1 mmol/L Pregnancy Trimester One: 7 to 12 mg/dL or 2.5 to 4.3 mmol/L Pregnancy Trimester Two: 3 to 13 mg/dL or 1.1 to 4. A low BUN level can occur normally in the second or third trimester of pregnancy. If kidney disease is a possible diagnosis, doctors will order BUN and creatinine testing at the same time. Liver disease or damage can lower your BUN level. Heart failure, dehydration, or a diet high in protein can also make your BUN level higher. Your BUN value of 28 mg/dL is way too high. If your kidneys are not able to remove urea from the blood normally, your BUN level rises. You received your blood test result with a BUN value of 28 mg/dL. Urea is made in the liver and passed out of your body in the urine.Ī BUN test is done to see how well your kidneys are working. Urea is made when protein is broken down in your body. A blood urea nitrogen (BUN) test measures the amount of nitrogen in your blood that comes from the waste product urea.
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