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Blood Urea Nitrogen measures the urea nitrogen in your blood, and is used to check how well your kidneys are working.

The Blood Urea Nitrogen test is run on a blood / as advised sample by our NABL-certified partner labs. It measures the urea nitrogen in your blood, and is used to check how well your kidneys are working.
| Parameter | Sample | Normal range | Unit |
|---|---|---|---|
| A/G Ratio | Serum | 1.0 – 2.1 | Ratio |
| Albumin | Serum | 3.5 – 5.2 | g/dL |
| Globulin | Serum | 2.0 – 3.5 | g/dL |
| Total Protein | Serum | 6.4 – 8.3 | g/dL |
You can eat and drink normally before this test unless your doctor advises otherwise.
Drink a normal amount of water — it makes the blood draw quicker and more comfortable.
Tell the phlebotomist about any supplements or medication, as some can affect protein levels.
Comfortable clothing lets the collection team access your arm easily.
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