Serum Folic Acid Test

A serum folic acid test measures the level of the water-soluble form of vitamin B9 in the liquid part of the blood. Folic acid plays a crucial role in DNA synthesis and cell division, and is essential for the formation of healthy red blood cells and nerve function. It is used to diagnose megaloblastic anemia and to assess nutritional status, particularly in pregnant women or those planning to become pregnant.