The albumin body fluid test is often used to determine the level of albumin levels in your body and to be more specific in your blood. Albumin is naturally secreted by your liver and is essential to maintaining structural integrity of your blood cells as well as for enabling your cells to repair any tissue damage. This will also be one of the first tests that any doctor would administer should you be admitted to the emergency room as this test can enable your physician to accurately determine the nutrition level of your body determine if you have a high or low albumin count as an extremely low count can impede your treatment and even result in you being non-responsive to the same.