Clinicians order a serum iron test to evaluate anemia, fatigue, or suspected iron imbalance. It helps guide next steps, track treatment, and assess potential iron overload from supplements or transfusions. Results are usually reviewed with ferritin and other iron studies. You can test this marker with Aniva across Germany and Finland.

Clinicians order a serum iron test to evaluate anemia, fatigue, or suspected iron imbalance. It helps guide next steps, track treatment, and assess potential iron overload from supplements or transfusions. Results are usually reviewed with ferritin and other iron studies. You can test this marker with Aniva across Germany and Finland.

High: May reflect recent iron tablets, reduced binding capacity, liver conditions, or inherited iron overload. Recheck in the morning and avoid iron supplements for 24 hours before sampling.
Low: May occur with iron deficiency, chronic inflammation, infection, or pregnancy. Discuss diet, bleeding risk, and follow-up tests like ferritin and TIBC with your clinician.

• Ferritin
• Transferrin
• Transferrin saturation
• Total iron-binding capacity (TIBC)
• Hemoglobin
• Complete blood count (CBC)

Common factors that can skew results include time of day (higher in the morning), recent iron or multivitamin tablets, high vitamin C, certain antibiotics or birth control pills, acute illness or inflammation, recent blood transfusion, dehydration, hemolysis from a difficult draw, vigorous exercise, and pregnancy.

Special situations: During infection, pregnancy, or within 24 hours of iron tablets or transfusion, confirm with a repeat test and review ferritin and transferrin saturation.