What is 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 the Purpose of Performing a Blood Urea Nitrogen Test?
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 a -
- Family history of kidney disease,
- Diabetes,
- High blood pressure (hypertension), and
- 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, and
- swelling in the hands, feet, and ankles.
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Get A Second OpinionWhat are the Costs of Blood Urea Nitrogen (BUN) Tests in India?
| Test Type | Blood Test |
|---|---|
| Preparation | No special preparation is required. |
| Report | Same day |
| Blood Urea Nitrogen test costs in Hyderabad | Rs. 450 to Rs.650 approximately. |
| Blood Urea Nitrogen test costs in Vizag | Rs. 450 to Rs.650 approximately. |
| Blood Urea Nitrogen test costs in Nashik | Rs. 400 to Rs.600 approximately |
| Blood Urea Nitrogen test costs in Aurangabad | Rs. 350 to Rs.650 approximately |
| Blood Urea Nitrogen test costs in Nellore | Rs. 350 to Rs.650 approximately |
| Blood Urea Nitrogen test costs in Chandanagar | Rs. 350 to Rs.650 approximately |
| Blood Urea Nitrogen test costs in Srikakulam | Rs. 350 to Rs.650 approximately |
| Blood Urea Nitrogen test costs in Sangamner | Rs. 350 to Rs.650 approximately |
| Blood Urea Nitrogen test costs in Kurnool | Rs. 550 to Rs.850 approximately |
| Blood Urea Nitrogen test costs in Kakinada | Rs. 550 to Rs.850 approximately |
| Blood Urea Nitrogen test costs in Karimnagar | Rs. 350 to Rs.650 approximately |
| Blood Urea Nitrogen test costs in Zaheerabad | Rs. 350 to Rs.650 approximately |
| Blood Urea Nitrogen test costs in Sangareddy | Rs. 350 to Rs.650 approximately |
| Blood Urea Nitrogen test costs in Nizamabad | Rs. 350 to Rs.650 approximately |
| Blood Urea Nitrogen test costs in Mumbai | Rs. 450 to Rs.750 approximately |
| Blood Urea Nitrogen test costs in Begumpet | Rs. 400 to Rs.600 approximately |
| Blood Urea Nitrogen test costs in Vizianagram | Rs. 350 to Rs.650 approximately |
What is the Normal Range of Blood Urea Nitrogen (BUN)?
| Age | Reference age (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 |
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What Does High Blood Urea Nitrogen Levels?
Higher BUN levels indicate a kidney problem.
What Does Low Blood Urea Nitrogen Levels?
Lower BUN levels indicate liver disease, overhydration, and malnutrition.
Any abnormal test results should be discussed with a doctor immediately.
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Book an AppointmentFrequently 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.
The average cost of a blood urea nitrogen (BUN) test in Hyderabad is Rs 120 to Rs 250.
Usually, there are no risk factors, but bruising, bleeding, and infection at the puncture site can rarely be seen.
Low urea nitrogen values indicate a low-protein diet, malnutrition, overhydration, or severe liver damage.
Cola’s
A BUN test is recommended in the following conditions
- 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
Before the BUN test, the person can eat and drink as usual. No fasting is needed.
It is a simple blood sample collection procedure. Only a small amount of blood is collected and sent for examination in the laboratory.
The BUN test results are usually available by the end of the day.
