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The Blood Urea Nitrogen (BUN) Low test measures low levels of urea nitrogen in your blood, which can indicate conditions like malnutrition, liver disease, or overhydration. This simple blood test is safe, with minimal risks such as mild pain or bruising at the sample site. Costs may vary by location, and the results help doctors evaluate kidney and liver function.
What is the Blood Urea Nitrogen Test?
Blood Urea Nitrogen (BUN) is a standard blood test used to determine the amount of urea nitrogen in the blood. This test gives important information about how well the kidneys are functioning. If a BUN test reveals higher urea nitrogen levels than normal, it suggests kidney malfunctioning.
What is Blood Urea Nitrogen Test used for?
A BUN test may be recommended by a healthcare provider during a routine checkup as part of a comprehensive metabolic panel (CMP) or basic metabolic panel (BMP) blood test. Additionally, a BUN test may be suggested if there is a higher risk of kidney disease.
Early stages of kidney disease may not exhibit any symptoms, but certain factors can increase the risk, such as:
- Family history of kidney disease
- Diabetes
- High blood pressure (hypertension)
- Heart disease
If symptoms of later-stage kidney disease are present, it is advisable to undergo a BUN test. Symptoms of later-stage kidney disease may include:
- Increased frequency of urination
- Foamy urine
- Blood in the urine
- Fatigue
- Loss of appetite
- Swelling in the hands, feet, and ankles
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Get Second OpinionWhat are the Costs of Blood Urea Nitrogen (BUN) Tests in India?
The average cost of a Blood Urea Nitrogen (BUN) Test in India is around Rs.200 to Rs.500. However, the price may vary depending on the lab and city.
Blood Urea Nitrogen (BUN) Test Price in Different Cities Across India
| City | Average Cost (INR) |
|---|---|
| Hyderabad | Rs. 450 to Rs.650 approximately. |
| Vizag | Rs. 450 to Rs.650 approximately. |
| Nashik | Rs. 400 to Rs.600 approximately |
| Warangal | Rs. 350 to Rs.650 approximately |
| Nellore | Rs. 350 to Rs.650 approximately |
| Srikakulam | Rs. 350 to Rs.650 approximately |
| Sangamner | Rs. 350 to Rs.650 approximately |
| Kurnool | Rs. 550 to Rs.850 approximately |
| Kakinada | Rs. 550 to Rs.850 approximately |
| Karimnagar | Rs. 350 to Rs.650 approximately |
| pune | Rs. 350 to Rs.650 approximately |
| Banglore | Rs. 350 to Rs.650 approximately |
| Nizamabad | Rs. 350 to Rs.650 approximately |
| Navi Mumbai | Rs. 450 to Rs.750 approximately |
| Chh. Sambhajinagar | Rs. 400 to Rs.600 approximately |
| Vizianagram | Rs. 350 to Rs.650 approximately |
Preparation for the test
A BUN test rarely requires any specific preparation. However, if your provider has ordered additional tests on your blood sample, you may need to fast (no eating or drinking) for several hours prior to the test. Your provider will notify you if there are any extra requirements.
Are there any risks to Blood Urea Nitrogen Test?
There is little risk in obtaining a blood test. You may suffer some pain or bruising where the needle was inserted, but most symptoms subside quickly.
What is the Normal Range of Blood Urea Nitrogen (BUN)?
| Age | Reference range (mg/dL) |
|---|---|
| 0-1 week | 3-12 |
| 1 week to 1 year | 4-19 |
| 1-12 years | 5-18 |
| 12-60 years | 6-20 |
| 60-90 years | 8-23 |
Note- Blood Urea Nitrogen Test price in India at different locations may vary
Book a Blood Urea Nitrogen Test at Medicover Hospitals. Call us at 040-68334455
Why is the Blood Urea Nitrogen (BUN) Test Done?
The BUN test is primarily done to assess kidney health. It helps detect kidney disease or monitor kidney function in people with chronic conditions like diabetes or high blood pressure. It may also be used to evaluate dehydration or liver function.
When is the Blood Urea Nitrogen (BUN) Test Needed?
Doctors may recommend this test if you have:
- Symptoms of kidney disease (e.g., fatigue, swelling, changes in urination)
- Chronic conditions like hypertension or diabetes
- Suspected dehydration
- Liver disease or gastrointestinal bleeding
- A need to monitor kidney function during medication or treatment
Who Should Take the Blood Urea Nitrogen (BUN) Test?
- People with a history of kidney problems
- Patients on medications affecting kidney function
- Individuals with chronic illnesses like diabetes or high blood pressure
- Older adults at risk for kidney dysfunction
- People experiencing unexplained fatigue, confusion, or urinary symptoms
What Type of Sample is Collected for the Blood Urea Nitrogen (BUN) Test and How?
A small blood sample is collected from a vein in your arm using a sterile needle. The procedure is quick and safe.
Are There Other Ways to Collect the Sample for the Blood Urea Nitrogen (BUN) Test?
No, the BUN test specifically requires a blood sample. There are no alternative collection methods for this test.
How is the Blood Urea Nitrogen (BUN) Test Performed?
- A healthcare provider cleans the area with antiseptic
- A sterile needle is inserted into a vein to draw blood
- The collected sample is sent to a lab for analysis
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How Long Does the Blood Urea Nitrogen (BUN) Test Take?
The blood draw takes about 5 to 10 minutes, and results are usually processed within a few hours.
When Will I Get My Blood Urea Nitrogen (BUN) Test Results?
You will usually receive your BUN test results within 12 to 24 hours, depending on the lab's processing time. Reports are sent directly to you via WhatsApp or as a printed copy. Once you have your results, our doctor will explain them and guide you on the next steps, if needed.
How Do I Understand My Blood Urea Nitrogen (BUN) Test Results?
- Normal Result: Indicates your kidneys are likely working well
- High BUN Levels: May suggest kidney dysfunction, dehydration, high protein intake, or heart failure
- Low BUN Levels: Can occur due to liver disease, malnutrition, or overhydration
What Should I Do After Getting My Blood Urea Nitrogen (BUN) Test Results?
If results are abnormal, your doctor may recommend further kidney tests, dietary changes, or treatment for underlying conditions. A normal result may not require any immediate action.
Is the Blood Urea Nitrogen (BUN) Test Painful?
The test involves a quick needle prick. Most people experience minimal discomfort or pain.
What are the Factors Affecting Blood Urea Nitrogen (BUN) Test Cost?
- Type of laboratory or diagnostic center
- City or location of the test
- Inclusion of home sample collection or additional kidney panel tests
- Whether consultation is included
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Frequently Asked Questions
The normal range for blood urea nitrogen varies according to age. For individuals 12-60 years of age, it is 6-20 mg/dl.
A high level of BUN suggests a kidney problem and can also be due to other conditions such as urinary tract obstruction, dehydration, heart failure, and severe burns.
Usually, there are no risk factors, but bruising, bleeding, and infection at the puncture site can rarely be seen.
Low urea nitrogen levels may indicate liver dysfunction, malnutrition, or overhydration, as the liver produces urea during protein metabolism.
Avoid high-protein foods like red meat, fish, eggs, and dairy. Limit processed foods, salty snacks, and sugary drinks to reduce kidney strain.
A BUN test is recommended for conditions like The frequent urge to urinate, Discoloration of urine - bloody, brown, or foamy, Pain while urinating, Swelling in wrists, abdomen, arms, eyes, and face, Joint pain, Dizziness, Pain in the mid-back, Muscle cramps.
No special preparation is typically required. However, your doctor may advise fasting or avoiding certain medications for more accurate results.
It is a simple blood sample collection procedure. Only a small amount of blood is collected and sent for examination in the laboratory.
Results are usually available within a few hours to a day, depending on the laboratory's processing time and urgency of the test.
