The albumin blood test, also known as an albumin level test, is an important indicator of liver and kidney function. It may be requested in conjunction with other blood or urine tests if you exhibit symptoms suggestive of liver or kidney disease. Albumin (ALB) levels can also reveal underlying nutritional deficiencies, particularly low protein levels in the body.

Symptoms indicative of liver disease include:
* Easy bruising
* Dark urine
* Fatigue
* Jaundice (yellowing of the skin or eyes)
* Loss of appetite
* Pale stools
* Edema and swelling in the abdomen or legs
* Unexplained weight loss

Symptoms indicative of kidney disease include:
* Loss of appetite
* Fatigue or difficulty concentrating
* Frequent urination at night
* Itchy or dry skin
* Muscle cramps or weakness
* Nausea and vomiting
* Swelling in the feet, ankles, or face
* Sleep problems
* Bloody, foamy, or dark-colored urine