Ferritin Test
Measures the protein that stores iron in your body to assess iron deficiency or overload conditions.
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What this test measures
A ferritin test measures the amount of ferritin in your blood. Ferritin is a protein that stores iron inside your cells. This test helps healthcare providers determine if you have a healthy amount of iron in your body. Ferritin is like your body's iron storage closet. It holds iron when you don't need it. It releases iron when you do need it. So, ferritin levels reflect how much iron your body has in storage.
Red blood cells need iron to form normally and carry oxygen around your body. Other parts of your body, such as your liver, bone marrow, and muscles, also need iron. Unlike direct iron measurements, ferritin provides a more stable indicator of iron stores because it reflects the amount of iron available for use by the body. Ferritin is the cellular storage protein for iron. It is present in small concentrations in blood, and the serum ferritin concentration normally correlates well with total-body iron stores, making its measurement important in the diagnosis of disorders of iron metabolism.
Who should consider this test
You might consider this test if you are experiencing any of the following:
- Individuals experiencing symptoms of iron deficiency such as fatigue, weakness, shortness of breath, or pale skin
- Those with symptoms suggesting iron overload, including joint pain, abdominal pain, or unusual skin coloration
- Women with heavy menstrual periods or those who are pregnant, as they have higher iron requirements
- People with chronic conditions that may affect iron metabolism, such as kidney disease, liver disease, or autoimmune disorders
- Individuals at risk for iron deficiency due to poor dietary intake, malabsorption disorders, or chronic blood loss
- Those monitoring treatment for iron-related conditions or evaluating the effectiveness of iron supplementation
What to expect
Preparation
If ferritin is the only test you're having, you can eat and drink as usual. You may need to fast for other blood tests. Always check with your doctor beforehand. Some sources suggest fasting for 12 hours may be recommended, and the test is often performed in the morning. Individuals taking high-dose biotin supplements should inform the laboratory, as this can interfere with test results.
Sample Type
A small blood sample is collected from a vein in the arm using standard venipuncture technique.
Collection
Think about wearing a shirt with short sleeves so the lab technician can get to your arm easily. A ferritin test should only take a few minutes. After cleaning the skin around it, a technician will insert a needle into a vein in your arm. They may wrap an elastic band around the upper part of your arm to make the vein easier to find. Once they've collected the right amount of blood, the technician will remove the band and needle and stop the bleeding with a cotton ball or bandage. No doctor visit is required for this straightforward blood draw.
Turnaround
Within 1 day from most laboratories, with results typically available within 1-2 business days after sample collection.
Understanding your results
Ferritin results help assess iron stores in the body and can indicate various conditions related to iron metabolism. Having high or low ferritin levels doesn't always mean something is wrong. Things like temporary medical conditions or a testing error can affect your results. If your result isn't normal, your provider will go over it with you. They may order more blood tests to find out why your results were abnormal. Healthcare providers interpret ferritin levels alongside other clinical information and symptoms to determine appropriate next steps.
| Population | Reference Range | Notes |
|---|---|---|
| Adult Males | 30-566 ng/mL | Reference ranges from Cleveland Clinic guidelines |
| Adult Females | 15-205 ng/mL | Reference ranges from Cleveland Clinic guidelines |
| General Adult Range | 12-300 ng/mL (males), 12-150 ng/mL (females) | Alternative reference ranges from some laboratories |
Reference ranges shown are general guidelines. Your lab report will include the specific reference range used by the laboratory that processed your sample, which is the authoritative range for interpreting your results.
What does a “Low” result mean?
Low ferritin means you don't have enough iron reserves in your body. Low levels mean you don't have much iron saved up. Low levels of ferritin lead to iron-deficiency anemia. This means you have too few red blood cells. Iron deficiency can come from a poor diet or blood loss. Low ferritin levels may result from inadequate dietary iron intake, chronic blood loss (such as from heavy menstrual periods), malabsorption disorders, or increased iron demands during pregnancy or periods of rapid growth. In adults, low iron levels usually happen because of long-term (chronic) blood loss. If you have ulcers or tumors in your gut, intestinal bleeding, or very heavy menstrual periods, you could lose more iron than you take in and develop an iron deficiency.
What does a “High” result mean?
Ferritin test results may be high due to hemochromatosis, which causes your body to store too much iron. High ferritin levels can also happen due to inflammation in your body. Conditions like autoimmune diseases or infections that cause inflammation can also result in high ferritin. Other factors that can lead to elevated ferritin include: Chronic illnesses like kidney disease and diabetes In a large multiethnic population, the most common causes of elevated ferritin levels are likely obesity, inflammation, and daily alcohol consumption. However, the cause of most cases of mild elevations in ferritin levels has not been clearly established High ferritin levels may also indicate liver disease, certain cancers, or Adult Still's disease.
Privacy & confidentiality
All test orders are authorized and results reviewed by an independent, board-certified physician who is not the patient's personal doctor. Your ferritin test results are completely confidential and handled with the highest level of privacy protection. Results are <u>not sent to your personal doctor</u> unless you specifically request them to be shared, ensuring your iron status information remains private. The test results are <u>not added to your medical records</u> automatically, giving you complete control over your health information. Additionally, these results will <u>not appear on insurance statements</u> or explanation of benefits, providing financial privacy for your health screening. Your test results are securely delivered through an encrypted online portal, and no information is shared with employers, insurance companies, or other third parties without your explicit consent. This confidential testing allows individuals to monitor their iron levels privately, whether for routine health screening or specific concerns about iron deficiency or overload. The privacy-focused approach ensures that those seeking to understand their iron status can do so without concerns about medical record implications or insurance complications.
Frequently asked questions
Related tests
Iron and TIBC Test
$59Measures circulating iron and binding capacity to provide comprehensive iron status assessment alongside ferritin
View TestComplete Blood Count (CBC)
$29Evaluates red blood cell count and characteristics to detect anemia that may be related to iron deficiency
View TestComprehensive Metabolic Panel (CMP)
$29Assesses liver function and overall health status, important when elevated ferritin levels are detected
View TestRelated conditions
CPT Code: 82728
This test may not be available in: NY, NJ, RI
This page is for informational purposes only and does not constitute medical advice. Always consult with a healthcare provider regarding any health concerns. LevelPanel does not diagnose, treat, or prescribe.
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