Decreased serum albumin indicates what?

• A. Hydration status only
• B. A good indicator of clinical outcome, it does not always reflect nutritional status
• C. Nutritional status only
• D. Liver synthetic function

Answer: (B)

Low serum albumin is best understood as a marker of illness severity and prognosis rather than a direct measure of nutritional status. Albumin is produced by the liver and behaves as a negative acute-phase reactant, meaning its levels fall with inflammation, infection, and catabolic stress. During these states, hepatic synthesis can slow and vascular leak can reduce circulating albumin, so lower levels correlate with worse outcomes across many conditions. Its relatively long half-life also means it reflects longer-term physiologic stress rather than short-term dietary changes, and hydration shifts can influence concentration but don’t explain the whole picture. Therefore decreased albumin indicates clinical outcome risk rather than strictly nutritional status, which is why the best answer states it does not always reflect nutritional status.