An albumin quantitative test measures the amount of albumin in a blood or urine sample to assess liver function, kidney health, and general nutrition. It is used to detect conditions like kidney disease (such as diabetic nephropathy), liver disease, or malnutrition, and can help monitor the progression of these conditions. Blood tests measure serum albumin levels, while urine tests typically assess albumin-to-creatinine ratio (ACR) or total output over 24 hours