Buy an iron deficiency test: ferritin and iron status panel

Testing your iron level can help you understand whether your body currently has enough iron. Both a shortage and an excess can be linked to symptoms, but these often develop slowly and resemble complaints from other causes.

A single marker rarely tells the whole story. By measuring four iron-related values together, you get a broader view of your iron status than with one value alone. For busy professionals, that is an efficient way to get a grip on symptoms such as fatigue or low energy.

This test may suit people who:

• have symptoms such as persistent fatigue, weakness, or pallor
• eat little iron-rich food, for example on a vegetarian or vegan diet
• deal with heavy menstrual periods
• want to follow up on a previously low or high iron value
• simply want preventive insight into their iron balance

Would you like more context? A doctor may advise adding other values alongside this panel.

This panel measures four iron-related markers in your blood:

• Ferritin: reflects how much iron you have in storage. It is often the first value to change when your iron status shifts. Read more on the page about ferritin.
• Iron (serum): the serum iron circulating in your blood at the time of the test. You can find more at iron.
• Transferrin: the protein that carries iron through your bloodstream. It gives an impression of transport capacity.
• Transferrin saturation: the percentage of transferrin currently carrying iron, combining your iron and transferrin values.

A single ferritin test looks at one value; this panel combines four.

A low ferritin may point to depleted iron stores, even when other values are still within range. A low serum iron with an elevated transferrin can suggest that your body is trying to compensate for limited available iron. Transferrin saturation ties these values together and may show whether supply is meeting demand.

Conversely, an elevated ferritin or a high transferrin saturation may fit iron accumulation. That is why the results of an iron test are best read together: the four markers give a clearer view of your iron status than any single value.

For this test, blood is drawn at a certified sample point (afnamepunt). There are 700+ locations across the Netherlands, which you choose yourself after ordering, at a time that suits you.

You do not need to see your GP first: this is a blood test without a referral. The draw is done by trained staff and usually takes only a few minutes.

This test can be useful when you:

• experience symptoms that could relate to your iron status, such as fatigue or shortness of breath
• want to test for iron deficiency because you take in little iron through your diet
• had a low or high iron value before and want to follow it up
• want a more detailed view than a single ferritin measurement provides

Each marker appears with your value and its reference range. The relationship between the four values often says more than any single number. A ferritin in the lower part of the range, together with a low transferrin saturation, may for example point to early iron depletion, even before your serum iron drops noticeably.

Your report explains each value in context. A doctor can help you decide whether your results suggest dietary changes, further monitoring, or additional investigation.

Fasting is not strictly required, but it may make your serum iron measurement more accurate. If you choose to fast, aim for 8 to 12 hours.

Do you use iron supplements? Then avoid them for at least 24 hours before the test, as they can temporarily raise your serum iron and affect your result.

Your results are available online within a few working days, with your values, the reference ranges, and a clear explanation for each marker. If a value falls outside the expected range, you will see that clearly.

Every blood test result includes a professional assessment from a BIG-registered doctor. For treatment decisions, discuss your results with your GP.