call us Call Us 75000 75111 0


All you need to know about Blood Urea Nitrogen (BUN) Test

By: Pathkind Labs 17 Dec 2018 159 Views

A blood urea nitrogen (BUN) test measures the amount of urea nitrogen in the blood to determine whether the kidney is functioning properly or not. When the body breaks down protein, urea nitrogen is a waste product produced in the liver. The kidneys are responsible for filtering out this waste product, and it is eliminated from the body through urination.

Why is BUN Test Performed?

A BUN test is often conducted along with other blood tests like creatinine blood test to evaluate kidney functioning. Some of the medical conditions the test can diagnose include:

  • Urinary tract obstruction
  • Liver damage
  • Congestive heart failure
  • Gastrointestinal bleeding
  • Malnutrition, etc.

The BUN test is often performed to check whether the treatment for dialysis is working effectively or not. It may also be performed during hospital stays, as part of regular checkups, etc.

Preparation of BUN Test

No special preparation is required before undergoing a BUN test. However, notify your doctor if you’re consuming any prescription or over-the-counter medications which may alter BUN levels.

What do BUN Test Results Mean?

Abnormal BUN levels may indicate liver or kidney damage. The results of the test are measured in milligrams per deciliter (mg/dL), and the BUN levels may vary based on the age and gender of a patient.

Generally, normal BUN levels are as follows:

  • 8 to 24 mg/dL in adult men
  • 6-21 mg/dL in adult women
  • 7-20 mg/dL in children aged between 1-17

Both high as well as low BUN levels may indicate some problem with the health of a patient. Some of the conditions associated with high BUN levels include:

  • Heart disease
  • Congestive heart failure
  • Kidney disease or kidney failure
  • Gastrointestinal bleeding
  • High levels of protein
  • Urinary tract obstruction
  • Stress or shock

On the other hand, conditions associated with low BUN levels include:

  • Overhydration
  • Malnutrition
  • Liver failure
  • Extreme lack of protein in diet

Your doctor may recommend other tests such as a urine test for proper diagnosis of a condition before beginning treatment. However, proper hydration stands as the best way to lower down the BUN levels. Also, it must be noted that abnormal BUN levels don’t always indicate a kidney disease. Factors such as dehydration, pregnancy, low or high intake of protein, ageing, etc. can alter the BUN levels without indicating an adverse health condition.

Risks of BUN Test

Unless a patient has a bleeding disorder or is taking medications such as blood thinners, regular activities can be resumed immediately after the test.

Regular health checkups are extremely important to keep several adverse medical conditions away. Nowadays, you can even book online blood test packages offered by quality pathlabs to get accurate test results while saving on money. 

What Causes the Smog During Winters?
By: Pathkind Labs 02 Feb 2021

What is winter smog?

When you think of w...

Read More
Treating Type-2 Diabetes in Coronavirus Patients
By: Pathkind Labs 02 Feb 2021

Since its inception in 2019, the novel coronavirus has become a par...

Read More
Preparing Your Family for Cold and Flu Season: Prevention is...
By: Pathkind Labs 02 Feb 2021

Winter is here! And with it comes the sniffles, the coughs, the col...

Read More
How does sleep cycle affect your health?
By: Pathkind Labs 25 Apr 2021

Are you someone who is

Hereditary Diseases Hereditary Diseases: What and When to Get Tested
By: Pathkind Labs 25 Apr 2021

Hereditary diseases are those that get passed on from one generatio...

Read More
10 Common Summer Ailments and How to prevent them?
By: Pathkind Labs 25 Apr 2021

Summer is here and the rising mercury brings with it a lot of distr...

Read More
Know about monsoon diseases Know About Monsoon Diseases and Ways to Overcome Them
By: Pathkind Labs 27 Jul 2021

It is that time of the year again when the parched land is drenched...

Read More
best environment for sleep What Is the Best Environment for Sleep?
By: Pathkind Labs 27 Jul 2021

What does a human being need at the end of a busy day? All he or sh...

Read More