The transferrin test is a direct measurement of transferrin--which is also called siderophilin--levels in the blood.

Transferrin

The protein that carries iron through the circulation of the tissues is called transferrin. Transferrin has also been found to bind to other metals and is used in biochemical research.

ferritin is the major soluble iron storage protein and caan be measured in serun . transferrin carries iron in serun

Transferrin is a type of glycoprotein in the blood that binds to iron and transports it throughout the body. It plays a crucial role in regulating iron levels and delivering iron to cells for various functions, such as in the production of red blood cells.