A decrease in serum albumin levels is most commonly associated with which condition?

• A. Dehydration
• B. Inflammation
• C. Malnutrition/malnourishment
• D. Renal disease

Answer: (C)

Serum albumin levels mainly reflect protein intake and the liver’s capacity to synthesize albumin, so low levels are most commonly seen with malnutrition or malnourishment. When dietary protein and overall calories are insufficient, the liver reduces albumin production, leading to decreased circulating levels. Albumin does not drop because of dehydration; in fact, dehydration tends to concentrate the blood and raise albumin. Renal disease can cause albumin loss in urine, especially in nephrotic syndrome, but that isn’t the most general or common association across typical nutrition assessments. Inflammation can also lower albumin as part of the acute-phase response, but malnutrition remains the classic link in this context.