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In spite of an increased level of transferrin, serum iron level is decreased along with transferrin saturation. Erythropoiesis impairment begins when the serum iron level falls to less than 50 μg/dL and transferrin saturation is less than 16%. [4] Stage 3 – Anemia (reduced hemoglobin levels) is present but red blood cell appearance remains ...
The percentage of iron saturation (or transferrin saturation index or percent) can be measured by dividing the level of serum iron by total iron binding capacity and is a value that can help to confirm the diagnosis of iron-deficiency anemia; however, other conditions must also be considered, including other types of anemia. [18]
Transferrin saturation (TS), measured as a percentage, is a medical laboratory value. It is the value of serum iron divided by the total iron-binding capacity [1] of the available transferrin, the main protein that binds iron in the blood, this value tells a clinician how much serum iron is bound. For instance, a value of 15% means that 15% of ...
Diagnosis is based upon identification of symptoms, medical history, family history, and laboratory tests. Blood tests may show high levels of ferritin and low, normal, or high levels of transferrin saturation, depending on the form of hemochromatosis. The diagnosis must be confirmed by genetic testing for SLC40A1 mutations. [14]
Transferrin and TIBC Percent transferrin saturation; Iron deficiency anemia: Low High. The liver produces more transferrin, presumably attempting to maximize use of the little iron that is available. Low, as there is insufficient iron. Anemia of chronic disease: Low, as the body holds iron intracellularly with ferritin. Low.
Iron deficiency, or sideropenia, is the state in which a body lacks enough iron to supply its needs. Iron is present in all cells in the human body and has several vital functions, such as carrying oxygen to the tissues from the lungs as a key component of the hemoglobin protein, acting as a transport medium for electrons within the cells in the form of cytochromes, and facilitating oxygen ...
IDA is associated with low hemoglobin, ferritin, transferrin saturation, and MCV. [4] It is also associated with a normal C-reactive protein and high transferrin. [4] ACD is associated as well with low hemoglobin but ferritin may be normal-high, and transferrin saturation, transferrin, and MCV may be low-normal. [4]
When plasma transferrin levels rise, there is a reciprocal decrease in percent transferrin iron saturation, and a corresponding increase in total iron binding capacity in iron deficient states [22] A decreased plasma transferrin level can occur in iron overload diseases and protein malnutrition.