Blood test

Normal ferritin level in the blood

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Normal ferritin level in the blood

What is the normal ferritin level in the blood?

Men: 20 - 250 ng/ml
Women not on menopause: 12 - 150 ng/ml
Women on menopause 12 - 250 ng/ml
Children from 6 months to 5 years old: 7 - 142 ng/ml
Children from 2 months to 5 months old: 50 - 500 ng/ml
Newborns: 25 - 200 ng/ml

In the International System of Units (SI), iron in the blood is measured in µg/L. The numeric values in the SI are the same as shown above.

Why normal levels can differ across different labs?

Each laboratory must establish its own normal ranges for ferritin in the blood. These ranges depend on the makeup of the local population, the technologies used and the accuracy of the measurement. There may be also slight differences in the normal levels according to age, gender, race or ethnic origin, geographic region, diet, type of sample and other relevant status.

Your doctor will study the results along with your medical record, screenings, physical condition, symptoms and any other relevant information about your situation.

In women, there are big differences in the ferritin normal range before and after menopause. Women on menopause has a normal range with a limit of 250 ng/ml. Women before menopause in contrast, has a normal range limit of about 150 ng/ml.

Children under one year old may have a ferritin level of 500 ng/ml in the normal range.

What is the role of ferritin in the body?

Ferritin is a protein that stores iron. Free iron is toxic for the body. For that reason, the storage of iron is made through the proteins ferritin and hemosiderin.

The ferritin level is an excellent way to know the body’s iron stores.

Ferritin plays a key role in the production of red blood cells.

Ferritin can be found mainly in the liver and in small amounts in the bone marrow, spleen and muscles.

A small amount is present in the blood. Although the ferritin in the blood is found in low concentration is a good estimation to determine the total iron stored in the body. It is estimated that for every g/ml of ferritin in the blood correlates with 10 mg of stored iron.

What is the ferritin blood test used for?

The ferritin blood test is performed along other blood assays to study a possible anemia. If anemia is present, the red blood cell formation will be compromised.

The other parameters to study the possibility of suffering from anemia include iron in the blood, transferrin, TIBC (Total Iron Binding Capacity), transferrin saturation and other hematology parameters (hemoglobin, red blood count, hematocrit, etc…)

A high ferritin level in the blood may suggest hemochromatosis or iron overload. In some cases, it can be a consequence of infectious diseases, inflammatory diseases, liver disorders or rheumatoid arthritis.

A low ferritin level in the blood may be a sign of iron deficiency anemia. The most interesting thing about ferritin is that it can predict the iron deficiency anemia before it appears.

Where can I find more information about ferritin level in the blood?

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Which values are considered a normal ferritin level in the blood?

The following values are considered to be normal values:

IMPORTANT: These levels are expressed in ng/dL. They are an example of a healthy woman of about 35 years old, not on menopause, with a balanced diet, not known disease and not taking any medication. The ranges can be different depending on the laboratory or on your personal circumstances.

Ferritin
Status
Normality
12 ng/ml14 ng/ml16 ng/ml18 ng/ml20 ng/ml22 ng/ml24 ng/ml26 ng/ml
28 ng/ml30 ng/ml32 ng/ml34 ng/ml36 ng/ml38 ng/ml40 ng/ml42 ng/ml
44 ng/ml46 ng/ml48 ng/ml50 ng/ml52 ng/ml54 ng/ml56 ng/ml58 ng/ml
60 ng/ml62 ng/ml64 ng/ml66 ng/ml68 ng/ml70 ng/ml72 ng/ml74 ng/ml
76 ng/ml78 ng/ml80 ng/ml82 ng/ml84 ng/ml86 ng/ml88 ng/ml90 ng/ml
92 ng/ml94 ng/ml96 ng/ml98 ng/ml100 ng/ml102 ng/ml104 ng/ml106 ng/ml
108 ng/ml110 ng/ml112 ng/ml114 ng/ml116 ng/ml118 ng/ml120 ng/ml122 ng/ml
124 ng/ml126 ng/ml128 ng/ml130 ng/ml132 ng/ml134 ng/ml136 ng/ml138 ng/ml
140 ng/ml142 ng/ml144 ng/ml146 ng/ml148 ng/ml150 ng/ml  
foto de Dr. Javier Muga Bustamante
Written by

Dr. Javier Muga Bustamante

Last update: 20/04/2020

Bibliography

  • Tietz. Fundamentals of Clinical Chemistry. Carl A. Burtis, Edward R. Ashwood, David E. Bruns, Barbara G. Sawyer. WB Saunders Company, 2008. Pag 520. ISBN: 978-0-7216-3865-2.
  • Laboratory tests and diagnostic procedures with nursing diagnoses (8th ed), Jane Vincent Corbett, Angela Denise Banks, ISBN: 978-0-13-237332-6, Pag. 39.

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