What is the normal range for albumin in adults?

The normal reference range for albumin in adults cannot be generalized, as the normal values vary across different age groups.

Albumin is an important protein in human plasma and a vital nutrient that helps maintain nutritional status and osmotic pressure in the body. It also plays a stabilizing role by providing colloidal protection for globulins. The normal albumin range for adults is 35–55 g/L, while for individuals over 60 years old, the normal range is 34–48 g/L. Generally, albumin levels above 55 g/L are considered elevated and may lead to symptoms such as dehydration or shock. Conversely, levels below 35 g/L indicate hypoalbuminemia, which may result in symptoms like bilateral lower limb edema or massive ascites.

Albumin serves critical physiological functions in the body, and both abnormally low and high levels can cause harm. If abnormalities are detected, it is important to seek medical evaluation to identify the underlying cause and determine an appropriate treatment plan to prevent disease progression.