The serum albumin blood test is a medical test used to measure the level of a protein called albumin in the blood. Albumin is a protein produced by the liver and is the most abundant protein in the blood. It plays an important role in maintaining fluid balance in the body and transporting hormones and other substances through the bloodstream.

The serum albumin test is primarily used to assess liver function and nutritional status. Low levels of albumin in the blood can be a sign of liver disease, malnutrition, inflammation, or other medical conditions. The test can also be used to monitor the response to treatment for certain conditions.

The serum albumin test is a simple blood test that can be done in a healthcare provider’s office or at a laboratory. The test involves taking a small sample of blood from a vein in the arm and analyzing it for the level of albumin.

Normal levels of albumin in the blood vary depending on age, gender, and other factors, but generally fall between 3.4 and 5.4 grams per deciliter (g/dL). Low levels of albumin in the blood, also known as hypoalbuminemia, can indicate a variety of medical conditions, including liver disease, kidney disease, malnutrition, and inflammation. High levels of albumin in the blood are less common but can be caused by dehydration or certain medical conditions.

It is important to note that the serum albumin test may be affected by certain medications and medical conditions. Your healthcare provider will interpret the results of your serum albumin test in the context of your individual health status and medical history.