Description
Urea & bun
Sample Type: Serum
Tests Included:
Urea and Blood Urea Nitrogen (BUN) measurement
Sample Required:
Blood sample
Test Time:
Results are typically available within a few hours.
Test Range Values:
Normal BUN levels typically range from 7 to 20 milligrams per deciliter (mg/dL). Urea levels are often reported in millimoles per liter (mmol/L), and the normal range is approximately 2.5 to 7.1 mmol/L.
What is the test?
The Urea and BUN test measures the concentration of urea nitrogen in the blood. One waste product produced by the liver’s degradation of proteins is urea. Elevated levels can indicate kidney dysfunction or dehydration.
Test Procedure:
A blood sample is drawn from a vein, and the concentration of urea and BUN is measured in the laboratory.
When to take the test:
When a healthcare provider suspects kidney disorders, dehydration, or as part of a routine metabolic panel, they may order this test.
Who should take the test:
Patients with symptoms suggestive of kidney disease, individuals with hypertension, diabetes, or other risk factors for kidney problems, may require this test for diagnosis and monitoring.
Precautions for exceptional cases (pregnancy, etc.):
Urea and BUN levels can be influenced by various factors, and healthcare providers consider the patient’s medical history, medications, and other conditions for accurate interpretation of results.
Frequently Asked Questions (FAQs) for Urea & BUN Test:
Q1: What can cause elevated urea and BUN levels?
A: Elevated urea and BUN levels can result from kidney dysfunction, dehydration, heart failure, gastrointestinal bleeding, or high protein intake. Certain medications and conditions affecting the liver can also affect these levels.
Q2: Can low urea and BUN levels indicate a health issue?
A: Low urea and BUN levels can be seen in conditions such as liver disease, malnutrition, or overhydration. It’s important to interpret these results in the context of the overall clinical picture.
Q3: Can dietary changes impact urea and BUN levels?
A: Yes, a high-protein diet can lead to elevated urea and BUN levels. It’s essential to consider dietary habits when interpreting these results.
*Please note that specific testing protocols and guidelines may vary based on the latest recommendations from health authorities and regulatory agencies. It is essential to consult healthcare professionals and follow local testing guidelines for accurate and appropriate testing.
