Ferric iron (ferric iron) concentration in serum/plasma
This test measures the amount of ferric iron (iron bound to transferrin in its saturated form) in your blood, often used to assess iron storage and potential iron overload conditions.
["Helps evaluate iron metabolism and detect conditions like hemochromatosis or iron deficiency."]
Key facts at a glance
- LOINC
- 34615-5
- Short code
- Iron Bld K Ferrocyanide Stn
- Synonyms
- Iron Bld K Ferrocyanide Stn
- Category
- chemistry
- Sample
- whole-blood
- Container
- Lavender-top (EDTA)
- Units
- N/A
- Ref low
- 60
- Ref high
- 170
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- potassium-ferrocyanide-stain
- CPT
- 83540
- Specimen volume
- 3 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 4–24 hours
- Order
- routine
Why This Test Might Be Ordered
Your healthcare provider may order this test if you have symptoms like fatigue, weakness, or unexplained iron-related issues. It can also be part of a broader evaluation for conditions affecting iron balance, such as anemia or genetic disorders like hemochromatosis.
What to Expect Before the Test
No special preparation is usually needed, but you may be asked to fast for 8–12 hours before the draw. Bring any medications you’re currently taking to your appointment.
How the Test Works
A blood sample is taken from a vein in your arm. The sample is then analyzed to measure ferric iron levels using a specialized laboratory method, often involving automated techniques to detect iron bound to proteins in your blood.
What the Results Mean
Results are typically reported as a concentration value (e.g., mass concentration of ferric iron). High levels may suggest iron overload, while low levels could indicate iron deficiency or other metabolic issues. Your provider will interpret results in the context of your overall health.
Reference range
NCBI: Serum Iron Male 65-180; Female 50-170 µg/dLN/A
Fasting for 12 hours preferred. Iron supplements should be stopped 24 hours before if possible.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance
Short name
Ferric Iron (Serum/Plasma)
Frequently asked questions
High ferric iron levels can indicate hemochromatosis or other iron storage disorders, which may increase the risk of organ damage over time. Low levels may signal iron deficiency anemia or malabsorption issues. This test helps guide treatment decisions, such as dietary adjustments or blood transfusions.
What causes ferric iron levels to be elevated? Ferric iron levels may rise due to genetic disorders like hemochromatosis, chronic liver disease, or excessive iron supplementation. Rarely, certain medications or blood transfusions can also contribute.
How long does it take to get my results? Results are typically available within 1–3 business days, depending on your lab’s processing schedule. Your provider will discuss them with you during your follow-up visit.
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 17, 2026. · Read our editorial policy