Blood Test Iron, Vitamins
CBC, iron studies, Vitamin B12, and Vitamin D in one comprehensive panel.
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Included Markers
7 markersA comprehensive panel combining a complete blood count (CBC) with iron studies (Ferritin, Iron, Transferrin, Transferrin Saturation), Vitamin B12, and Vitamin D. This panel provides a broad view of your blood health and nutritional status in a single blood draw.
Why this test?
Fatigue and low energy can have many possible explanations, including iron status, vitamin levels, and blood cell counts. Rather than testing these separately, this panel combines them into one draw, making it easier to see the broader picture and identify whether any of these common factors may be contributing.
Who is this test for?
This test may be relevant for adults who want a combined overview of their blood health, iron status, and vitamin levels. It can be useful for those experiencing tiredness or low energy, for those on restricted diets, or for anyone who wants a thorough nutritional and haematological snapshot.
What is tested?
- Complete Blood Count (CBC): red blood cells, white blood cells, haemoglobin, haematocrit, platelets, and related indices.
- Ferritin: reflects the body's iron stores.
- Iron (Serum): the amount of iron circulating in the blood.
- Transferrin: the protein that transports iron; helps indicate whether the body is requesting more iron.
- Transferrin Saturation: the percentage of iron-carrying capacity being used.
- Vitamin B12: involved in nerve function and the production of red blood cells. Deficiency may be associated with fatigue and neurological symptoms.
- Vitamin D: plays a role in bone health, immune function, and general wellbeing. Levels can be lower during seasons with limited sunlight.
What can this test tell you?
By combining a CBC with iron markers and vitamins, this panel may help identify whether fatigue, for instance, could be associated with low iron stores, vitamin deficiency, or changes in blood cell counts. Seeing all of these values together allows for a more informed conversation with your healthcare provider.
How is the sample collected?
A blood sample is drawn at a certified sample point (afnamepunt). There are over 750 locations across the Netherlands. After placing your order, you can select a location and time that suits you.
When is this test useful?
This test may be useful when you want a comprehensive picture of your blood health and nutritional status without ordering multiple individual tests. It can serve as a general health check or as a way to investigate persistent fatigue or low energy.
What do the results mean?
Results are presented with reference ranges for each marker. With a panel of this breadth, it is not uncommon for one or two values to fall slightly outside the reference range. Iron-related markers should be viewed together for the most informative picture. A healthcare provider can help determine which findings, if any, may benefit from further attention.
Preparation
Fasting is recommended for more consistent iron results. Avoid iron supplements for 24 hours before the blood draw. No other special preparation is needed.
What happens after the results?
Your results are available in your personal dashboard. If you have questions about the values, or if you would like guidance on diet, supplementation, or next steps, discussing the results with your healthcare provider is recommended.
Frequently Asked Questions
From order to report in 4 steps
No waiting, no referral. Just order and go.
Choose your check-up
Browse our health panels and choose the check-up that fits you. Compare markers, or build a custom test.
Receive your lab referral
Within 2-3 hours you'll receive an email from ZorgDomein with a barcode. Orders outside business hours are processed the next business day.
Get tested at a lab near you
Show the barcode on your phone and bring a valid ID. Done in under 15 minutes.
Receive your report from the doctor
A BIG-registered physician reviews your results and writes a personal report. On your dashboard within a few business days.
Choose your check-up
Browse our health panels and choose the check-up that fits you. Compare markers, or build a custom test.
Receive your lab referral
Within 2-3 hours you'll receive an email from ZorgDomein with a barcode. Orders outside business hours are processed the next business day.
Get tested at a lab near you
Show the barcode on your phone and bring a valid ID. Done in under 15 minutes.
Receive your report from the doctor
A BIG-registered physician reviews your results and writes a personal report. On your dashboard within a few business days.
Always a location near you
With more than 450+ certified phlebotomy points across the Netherlands.
What We Test
This health panel includes 7 biomarkers to give you a clear picture of your health.
Serum iron measures the amount of circulating iron in your blood. Iron is essential for haemoglobin production, oxygen transport, and energy metabolism throughout the body.
Learn moreTransferrin saturation measures the percentage of the iron-transport protein transferrin that is occupied by iron. It is a key indicator of your body's iron status and helps distinguish between different causes of iron-related disorders.
Learn moreVitamin B12 is considered essential for red blood cell formation, neurological function, and DNA synthesis. Deficiency may develop gradually and is sometimes associated with dietary patterns. Healthcare providers can help interpret your results.
Learn moreVitamin D is a fat-soluble vitamin that plays a key role in calcium absorption, bone health, and immune function. It is primarily produced in the skin through sunlight exposure and can also be obtained from certain foods and supplements.
Learn moreFerritin is the primary storage protein for iron in your body. It reflects your iron stores more accurately than iron levels themselves, which can fluctuate considerably throughout the day. Low ferritin is the earliest sign of iron deficiency — often measurable before your haemoglobin drops and anaemia develops. High ferritin can indicate iron overload but is also a widely used inflammation marker. Interpretation always depends on the clinical context.
Learn moreTransferrin is the main protein responsible for transporting iron in the blood. It carries iron from the gut and storage sites to cells that need it, including bone marrow for red blood cell production.
Learn moreA complete blood count (CBC) is a comprehensive blood test that evaluates the major components of your blood: red blood cells, white blood cells, and platelets. It is one of the most commonly ordered blood tests and provides a broad overview of your overall health.
Learn moreIron (Serum)
MineralsSerum iron measures the amount of circulating iron in your blood. Iron is essential for haemoglobin production, oxygen transport, and energy metabolism throughout the body.
Iron is vital for producing red blood cells and carrying oxygen. Both low and high levels can affect your health. Serum iron is best interpreted alongside ferritin and TIBC for a complete picture. Consult your healthcare provider.
Transferrin Saturation
MineralsTransferrin saturation measures the percentage of the iron-transport protein transferrin that is occupied by iron. It is a key indicator of your body's iron status and helps distinguish between different causes of iron-related disorders.
Transferrin saturation is one of the most informative markers for assessing iron balance. It can help identify iron deficiency before anemia develops and is also valuable for detecting iron overload conditions such as hemochromatosis.
Vitamin B12
VitaminsVitamin B12 is considered essential for red blood cell formation, neurological function, and DNA synthesis. Deficiency may develop gradually and is sometimes associated with dietary patterns. Healthcare providers can help interpret your results.
Vitamin B12 is believed to be vital for healthy nerve cells, red blood cell formation, and DNA synthesis. Low levels may be associated with anaemia, fatigue, and neurological symptoms. Early detection through testing may help prevent long-term complications.
Vitamin D (25-OH)
VitaminsVitamin D is a fat-soluble vitamin that plays a key role in calcium absorption, bone health, and immune function. It is primarily produced in the skin through sunlight exposure and can also be obtained from certain foods and supplements.
Adequate vitamin D levels are essential for strong bones, a well-functioning immune system, and overall well-being. Low levels may be associated with an increased risk of bone disorders, mood changes, and weakened immunity. Consult your healthcare provider for personalised advice.
Ferritin
MineralsFerritin is the primary storage protein for iron in your body. It reflects your iron stores more accurately than iron levels themselves, which can fluctuate considerably throughout the day. Low ferritin is the earliest sign of iron deficiency — often measurable before your haemoglobin drops and anaemia develops. High ferritin can indicate iron overload but is also a widely used inflammation marker. Interpretation always depends on the clinical context.
Iron deficiency is the most common nutritional deficiency worldwide and one of the leading causes of fatigue. Ferritin detects iron deficiency at an early stage, before haemoglobin drops. This makes it a valuable preventive marker. In women of childbearing age, iron deficiency is particularly common due to menstrual blood loss. A ferritin below 30 µg/L with symptoms such as fatigue, concentration problems, or hair loss is often already reason to supplement, even if haemoglobin is still normal. On the other hand, significantly elevated ferritin (above 500 µg/L) can indicate haemochromatosis, a hereditary condition in which the body absorbs too much iron. Untreated, this can lead to liver, heart, and joint damage. Haemochromatosis occurs in 1 in 200 people of European descent and is often discovered late.
Transferrin
MineralsTransferrin is the main protein responsible for transporting iron in the blood. It carries iron from the gut and storage sites to cells that need it, including bone marrow for red blood cell production.
Transferrin levels help determine whether your body is getting enough iron and transporting it effectively. Abnormal levels may indicate iron deficiency, overload, liver disease, or chronic conditions. Consult your healthcare provider for interpretation.
Complete Blood Count (CBC)
HematologyA complete blood count (CBC) is a comprehensive blood test that evaluates the major components of your blood: red blood cells, white blood cells, and platelets. It is one of the most commonly ordered blood tests and provides a broad overview of your overall health.
The CBC is a cornerstone of preventive healthcare and diagnostic medicine. It can help detect a wide range of conditions including anemia, infections, immune disorders, blood cancers, and clotting problems. Regular CBC testing supports early detection and ongoing health monitoring.
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