Which test measures albumin level in the blood?

• A. Albumin test
• B. Amniocentesis
• C. Angiography
• D. Arthrocentesis

Answer: (A)

Measuring albumin in the blood is done with a blood test that quantifies the amount of albumin in the serum. Albumin is a major protein produced by the liver, and its level helps assess nutritional status, liver function, and certain disease states. The albumin test is specifically designed for this purpose and is often included in broader metabolic panels. The other options are different procedures: amniocentesis collects amniotic fluid for fetal testing, angiography visualizes blood vessels with contrast, and arthrocentesis withdraws joint fluid for analysis. Therefore, the test that measures the albumin level in the blood is the albumin (serum albumin) test.