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Iron analysis: why is it needed and what does it show?
Iron is one of the most important trace elements for life. It is responsible for oxygen transport, participates in the synthesis of hormones and enzymes, affects the functioning of the brain, the immune system and the processes of cellular respiration. Any deviations in iron levels - both in the direction of decrease and increase - can have serious consequences. For the timely detection of such conditions, iron analysis, which is included in basic laboratory tests.
What does an iron test determine?
Laboratory analysis determines the concentration of iron in the blood serum. Its results allow:
assess the level of trace elements in the body;
detect iron deficiency or excess;
monitor the effectiveness of therapy for anemia or hemochromatosis;
to suspect a disorder in the absorption of nutrients.
Usually, this test is supplemented with other indicators that form the so-called "iron profile": ferritin, transferrin and total serum iron binding capacity (TSIBC). Together, they provide the most accurate picture of iron metabolism.
When is it recommended to undergo an analysis?
An iron test is indicated in the following cases:
symptoms of anemia (weakness, dizziness, pale skin);
chronic fatigue, decreased performance;
brittle nails, hair loss, dry skin;
heavy menstruation in women;
gastrointestinal bleeding;
control during pregnancy;
assessment of the effectiveness of taking iron preparations;
suspicion of iron overload, intoxication, or genetic hemochromatosis.
If you notice weakness, paleness, or increased fatigue, you should pay attention not only to your iron levels, but also to other blood parameters. More about detailed blood test.
Normal iron levels
| Category | Norm (μmol/L) |
|---|---|
| Men | 11.6 – 30.4 |
| Women | 9.0 – 26.8 |
| Children | 7.2 – 22.0 |
| Pregnant women | possible physiological decrease |
How to prepare for the study
Blood is donated in the morning, on an empty stomach.
You should not eat for 8–12 hours before the test; only water is allowed.
You should refrain from taking iron and vitamin C supplements for 2–3 days (unless your doctor has prescribed otherwise).
Limit fatty foods and alcohol per day.
What do the deviations in the results mean?
Low iron levels: more often observed in iron deficiency anemia, chronic bleeding, peptic ulcer disease, pregnancy, vitamin C deficiency, or intestinal diseases that impair absorption.
Elevated iron levels: may be a sign of hemochromatosis, iron poisoning, destruction of red blood cells, or liver pathologies.
Comparison table: iron deficiency and excess
| State | Main symptoms | Possible consequences |
|---|---|---|
| Iron deficiency | Weakness, drowsiness, brittle nails, pallor, shortness of breath | Anemia, decreased immunity, problems with cognitive functions |
| Excess iron | Darkening of the skin, pain in the abdomen, joints, heart rhythm disturbances | Liver damage, diabetes, heart failure |
Tests to assess iron metabolism
| Analysis | What does it show? | When to use |
|---|---|---|
| Serum iron | Iron concentration in the blood | If a deficiency or excess is suspected |
| Ferritin | Iron stores in the body | To confirm anemia or hemochromatosis |
| Transferrin | Iron transport protein | To assess absorption and redistribution |
| OZSS | Total serum iron binding capacity | For a comprehensive assessment of the "iron profile"« |
Iron analysis is a basic but extremely important study that helps to detect problems with the metabolism of this trace element in time. For women, children, pregnant women, athletes and people with chronic diseases, iron levels should be monitored regularly. This helps to prevent the development of anemia, metabolic disorders and serious complications associated with excess iron.
