Common "Blood Urea Nitrogen" queries answered by top doctors | iCliniq

Blood Urea Nitrogen

Urea nitrogen, a waste product produced in the liver, is produced when the body breaks down proteins. Blood urea nitrogen is a blood test done to evaluate the functions of the kidney. It is used in measuring the amount of urea nitrogen present in the blood. It also helps in diagnosing liver damage, malnutrition, congestive heart failure, urinary obstruction, and gastrointestinal bleeding. Having a value of 7 to 20 mg/dL is considered normal.

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All the answers published in this website are written by verified medical doctors, therapists and health experts. The Content has been moderated by iCliniq medical review team before publication. Post your medical clarifications on iCliniq by choosing the right specialty and get them answered. Your medical queries will be answered 24/7 by top doctors from iCliniq.

What could be the cause of my low BUN creatinine ratio?

Query: Hello doctor, Can you please evaluate my laboratory test reports? Is there anything to worry about? I have been under a lot of stress. Please help.  Read Full »


Dr. Vedprakash Verma

Answer: Hello, Welcome to icliniq.com. I went through your query. I have seen your laboratory test reports (the attachments removed to protect the patient's identity). Your BUN creatinine ratio is low. Since you are not diabetic, there is no risk of any kidney disease. Do not panic. Other test reports a...  Read Full »

I had kidney function tests for bright yellow urine. What is the present state of my kidneys?

Query: Hi doctor, I am 76 years old. I do not feel thirsty thus I drink very little water for a long time. I was advised to take more water but I am unable to take as I need to force myself to do so. My urine used to be yellow three or four times a day whereas for the past 20 days it is always yellow in...  Read Full »


Dr. R. Rahul

Answer: Hi, Welcome to icliniq.com. I went through the case history and the reports (attachment removed to protect patient identity). I would like to know what kind of medication you are taking for hypertension and diabetics. Do you get a burning sensation while passing urine or fever? Kindly get back wit...  Read Full »

Will high protein intake cause high levels of creatinine and BUN?

Query: Hello doctor, I am a 52-year-old male. My recent labs show elevated levels of BUN and creatinine. I have hypertension and it is controlled by medication. I am a weight trainer and boxer. I have followed a high protein diet over the years. My lab repot shows: eGFR - 71. BUN - 27. Creatinine - 1...  Read Full »


Dr. Manzoor Ahmad Parry

Answer: Hello, Welcome to icliniq.com. I would like to know which medicines you take for hypertension? I would like to know, whether you have done any urine examination? Rest eGFR (glomerular filtration rate) of 71 is within normal range for you, if urine examination is normal. I would advise you to decr...  Read Full »

My diabetic father has high creatinine and BUN levels. Why?

Query: Hi doctor,My father is suffering from diabetes, hypertension, and chronic kidney disease. His creatinine level is 5 mg/dL, blood urea nitrogen level is 90 mg/dL, hemoglobin level is 8 g/dL. He is taking capsule Sompraz IT, tablet Faronac 300 mg ER, tablet Febuxostat 40 mg, tablet Irozorb plus, table...  Read Full »


Dr. Manzoor Ahmad Parry

Answer: Hello,Welcome to icliniq.com.I have seen the report attached (attachment removed to protect the patient's identity). What is your query?  Read Full »

My 81-year-old diabetic father has elevated BUN values. Is it due to painkillers?

Query: Hi, My 81-year-old father has been diabetic for the past 30 years. He has had bypass surgery and a stroke in the past. He also underwent treatment for non-Hodgkins lymphoma 11 years back. His current medication includes Mixtard Insulin 30/70 42 units in the morning and 12 units at night, Glycomet GP...  Read Full »


Dr. Manzoor Ahmad Parry

Answer: Hello, Welcome to icliniq.com. I read your query and understand your concern. I checked your father's reports (attachments removed to protect the patient's identity). His tests are within normal limits, except for a slight increase in BUN (blood urea nitrogen) and low vitamin D levels. There is a po...  Read Full »

My ferritin levels, BUN, rheumatoid factor, and typical lymphocyte count are high. Why so?

Query: Hello doctor, My ferritin levels, BUN, rheumatoid factor, and typical lymphocyte count are high. Can they all be connected somehow? I have been sick for over a year or so. Please help.  Read Full »


Dr. Goswami Parth Rajendragiri

Answer: Hi, Welcome to the icliniq.com. I went through your query. According to your history, serum ferritin is high in anemia of chronic disease. Here chronic disease includes inflammation, chronic infection, and cancer. Vitamin B12 levels are usually high when B12 supplements are prescribed. But since ...  Read Full »

I had a blood test to rule out rheumatoid arthritis and found altered urea and BUN levels. I am concerned that my kidneys are affected. Kindly suggest.

Query: Hello doctor,I just had my routine blood test with Rh factor to rule out rheumatoid arthritis. I am taking Diclofenac for the last two months due to uric acid and gout pain. My Rh factor is okay, but my urea is 43, and my BUN is 20. Are the levels high? I am concerned if I am suffering from a kidney...  Read Full »


Dr. Madhav Tiwari

Answer: Hello, Welcome to icliniq.com. I read your query and understand your concern. Levels of urea and BUN on their own (if elevated) do not have too much significance. From the reports (attachments removed to protect the patient's identity) creatinine levels are 0.91 which is within normal limits. Levels...  Read Full »

I am under medication for hypothyroidism and high BP. What should I do?

Query: Hello doctor, I am a 47 year old male. I am having hypothyroidism and high BP from the last 15 years. My height is 5 feet and 6 inches and weight is 180.7 lbs. I am taking Thyronorm 125 mcg and Telsartan H80 daily. I am attaching my recent blood reports. Please guide on what I should do.  Read Full »


Dr. Shaikh Sadaf

Answer: Hello, Welcome to icliniq.com. I read your query about your health conditions and saw the detailed reports which you have attached (attachment removed to protect patient identity). It appears that you have hypothyroidism, hypertension, and dyslipidemia. Your thyroid function test shows that the TS...  Read Full »

What is the treatment for my 4-year-old diabetic son with high lipid panel?

Query: Hello doctor, My son is 4 years old and he has been diagnosed with type 1 diabetes one year ago. He has a high lipid panel. Comprehensive metabolic panel, lipid panel, T4 free, and thyroid have been done. Reports have been attached herewith. His A1C is 7.2. He uses Omnipod and Dexcom. He uses NovoL...  Read Full »


Dr. Swaraj Waddankeri

Answer: Hello, Welcome to icliniq.com. It is not something that one should be worried about. Triglycerides are high when the sugars are high and when sugars settle, the triglycerides also settle. Do not panic. Blood urea nitrogen is just above and it is not significant.   Read Full »

Inspite of undergoing dialysis for kidney failure, my creatinine and BUN levels are higher. Why?

Query: Hello doctor, I am on dialysis for kidney failure and I have noticed a fluctuation in my monthly blood work for the creatinine and BUN levels. At the beginning of the year, my creatinine was 11 and it has decreased every month to 7. I was also making more urine as I went along. All of a sudden, las...  Read Full »


Dr. Hariharan V

Answer: Hello, Welcome to icliniq.com. I have worked as a chief in a hemodialysis center for 20 months. Once the kidneys have failed and the patient is hooked up on dialysis, the creatinine value is always high. At this time we do not care about the creatinine values because once we start dialysis on a p...  Read Full »

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