BLOOD UREA NITROGEN (BUN)

Blood Urea Nitrogen (BUN) may be due to prerenal causes (Cardiac decompensation, water depletion due to decreased intake and excessive loss, increased Protein Catabolism, and high Protein Diet), Renal causes (Acute Glomerulonephritis, Chronic Nephritis, Polycystic Kidney Disease, Nephrosclerosis, and Tubular Necrosis), and Postrenal causes (Eg, all types of obstruction of the Urinary Tract, such as Stones, enlarged Prostate Gland, Tumors). Serum Blood Urea Nitrogen (BUN) determinations are considerably less sensitive than BUN clearance (and creatinine clearance) tests, and levels may not be abnormal until the BUN clearance has diminished to less than 50%. Clinicians frequently calculate a convenient relationship, the Urea Nitrogen:creatinine ratio-serum BUN in mg/dL/serum creatinine in mg/dL.

BUN Test is advised for following purposes:

• Diagnosis: If you experience symptoms such as changes in your Urine, swelling in your Arms or Legs, cramping in your Muscles, or frequent bouts of exhaustion, you may need to have your BUN measured.
• Screening: Regular medical checkups may involve a BUN test as part of a basic metabolic panel (BMP) or comprehensive metabolic panel (CMP) to screen for potential renal issues. If kidney disease runs in your family or you have a higher risk of developing it due to Diabetes, Cardiovascular issues, or other conditions, screening may be recommended.
• Monitoring: One way to monitor Kidney function over time is to measure BUN regularly. When assessing how well Renal disorders are being treated, a BUN test might yield pertinent information.

If you have Kidney problems or are at risk for developing them, your doctor may advise a BUN test as part of a comprehensive examination. Usually, early Kidney disease exhibits no symptoms at all. Kidney disease may be more likely to occur if you have:

• Family of kidney problems
• Diabetes
• High blood pressure
• Heart disease

• Frequent/reduced urge to urinate 
• Fatigue
• Itching
• Muscle cramps
• Swelling in your legs, feet, or ankles
• Trouble sleeping

• Unless otherwise directed by your doctor, there is no need for you to make any special preparations before the BUN Test. 
• Other blood tests can be carried out in addition to a BUN Test. If your doctor advises you to have multiple tests at once, they may ask you to fast for a specific period of time prior to a blood test.
• Drink adequate water before sample collection.
• Follow the preparatory instructions as guided by your doctor.

The Price of a BUN Test is Rs. 150. However, cost of the test may fluctuate depending on following factors:

• Other tests advised along with BUN Test
• Offers or discounts
• Empanelment of the patient

• BUN: The amount of Urea in a Blood Sample is determined using a Blood Urea Nitrogen (BUN) test. A waste product called Urea is created when the body naturally breaks down proteins. It is also known as Urea Nitrogen, and is filtered out of the Blood by the Kidneys.

A normal Blood Urea Nitrogen level varies according to your age and sex. Following is the normal range of BUN levels according to age:

Age and Sex	Normal BUN Level (mg/dL)
Children between 1 and 17 years.	Between 7 and 20 mg/dL.
Adult women and people assigned female at birth.	Between 6 and 21 mg/dL.
Adult men and people assigned male at birth.	Between 8 and 24 mg/dL.

The Blood Sample for BUN Test is taken in following steps:

• The area where the needle will be inserted to take your blood is cleaned with an antiseptic alcohol wipe. The hollow on the inside side of the elbow or the tip of the finger are the most common sites for this.
• A tourniquet or a band is tied around your upper arm to facilitate the access to the vein in your arm.
• A needle is used to puncture your vein. The blood sample is collected into a test tube attached to the needle. The needle may cause a small pinch or sting when it is inserted.
• Once the vial or test tube is filled, the blood sample collection for the test is finished and the needle is taken out.
• Finger pressure is applied on the puncture site to stop the bleeding and the band aid is applied at the site.
• Blood collection typically takes less than five minutes. 
• Temporary throbbing and bruising, as well as mild discomfort or stinging when the needle is inserted, are all possible side effects of a blood draw.

• Go to the Dr. B. Lal Lab website.
• Go to the “Book a test” tab.
• Select the “Lab Test” tab.
• Type “BUN Test” in the search bar.
• Click on the test.
• The test page with all the test details will show up.
• Click on “Book Now”.
• Login and verify your mobile number with OTP.
• Now enter your details. 
• Select date & time for booking BUN Test in Jaipur. 
• Check out.