Which laboratory value is a poor sole indicator of nutrition status but can reflect chronic illness or inflammation?

• A. Hemoglobin
• B. Albumin
• C. Glucose
• D. Sodium

Answer: (B)

Albumin serves as a signal of chronic illness and inflammation more than a direct measure of current nutritional status. It’s produced by the liver and has a relatively long half-life, so it doesn’t change quickly with short-term dietary changes. Inflammation—common in chronic illness—releases cytokines that reduce albumin synthesis and increase its loss from the bloodstream, leading to lower levels even when nutritional intake is adequate. Because of this, a low albumin can reflect inflammation or illness rather than malnutrition alone, and using albumin by itself to judge nutrition can be misleading. It’s better used alongside other nutrition indicators, such as body measurements and dietary intake, to form a complete picture. The other values listed can be influenced by many factors (hydration, illness, metabolic states) and do not specifically track nutrition status either, though they provide important clinical context.