What is the normal albumin level in the blood?

The normal albumin level in the blood typically ranges from about 3.5 to 5.0 g/dL, with 4.0 g/dL being a common reference point within this range. Albumin, a protein synthesized by the liver, plays a critical role in maintaining oncotic pressure and transporting various substances, including hormones, vitamins, and drugs, throughout the body. A level of 4.0 g/dL indicates a healthy balance, reflecting sufficient liver function and nutritional status. Values below this range may suggest conditions such as liver disease, kidney disease, or malnutrition, while higher levels could indicate dehydration or other conditions. Hence, 4.0 g/dL is a well-accepted normal level for albumin in the blood.