Iron Saturation Formula:
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Iron saturation calculation measures the percentage of transferrin that is saturated with iron. It helps diagnose iron deficiency or iron overload conditions by comparing serum iron levels to total iron-binding capacity (TIBC).
The calculator uses the iron saturation formula:
Where:
Explanation: The equation calculates what percentage of available iron-binding sites on transferrin are actually occupied by iron.
Details: Iron saturation is a crucial marker for assessing iron status. Low saturation indicates iron deficiency, while high saturation may suggest iron overload conditions like hemochromatosis.
Tips: Enter serum iron and TIBC values in μg/dL. Both values must be valid (greater than 0). The calculator will compute the iron saturation percentage.
Q1: What is a normal iron saturation range?
A: Normal iron saturation typically ranges from 20% to 50%. Values below 20% suggest iron deficiency, while values above 50% may indicate iron overload.
Q2: How does iron saturation differ from ferritin?
A: Iron saturation measures circulating iron, while ferritin measures stored iron. Both are important for comprehensive iron status assessment.
Q3: When should iron studies be performed?
A: Iron studies are typically ordered when anemia is suspected, or when monitoring iron therapy or iron overload conditions.
Q4: Are there factors that can affect iron saturation results?
A: Yes, recent iron supplementation, inflammation, liver disease, and certain medications can affect both serum iron and TIBC measurements.
Q5: What follow-up tests might be needed for abnormal results?
A: Depending on results, additional tests may include ferritin, transferrin, genetic testing for hemochromatosis, or bone marrow examination in complex cases.