An albumin blood test determines the amount of albumin in your blood. Albumin is a protein found in blood plasma. Albumin is produced by the liver. Albumin prevents fluid from leaking from your bloodstream. It also promotes the circulation of vitamins, enzymes, hormones, and other substances throughout your body.
An albumin blood test is a liver function test. If you have symptoms of liver or kidney disease, you may need it in addition to other blood tests or urinalysis (urine test). Albumin levels can also indicate underlying nutritional deficiencies, particularly a lack of protein in your diet.
Symptoms of liver disease may include:
- Dark urine
- Jaundice (yellow skin or whites of the eyes) (yellow skin or whites of the eyes).
- Appetite loss
- Stool color changes, such as pale stool.
- Edema (swelling) in your abdomen or legs.
- Unexplained weight loss
Kidney disease symptoms include:
- Loss of appetite
- Tiredness or difficulty concentrating
- Urination on a regular basis, particularly at night
- Itchy or dry skin
- Muscle cramps or weakness
- Vomiting and nausea.
- Swelling in your feet, ankles, or face
- Sleeping difficulties
- Urine changes, such as bloody, foamy, or dark urine