Look up a blood value
A blood value shows how your body is doing on the inside. You will find them all here in one place, with no referral from a GP. Pick a value and read its reference range. You also see what an abnormal result can mean.
Build your own blood test with exactly the biomarkers you need.
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Semen Analysis
Semen analysis is an essential component of a comprehensive fertility assessment. By evaluating multiple parameters of sperm health, this test provides a thorough picture of male reproductive function as part of your overall health profile.
Serotonin
Serotonin is a neurotransmitter that plays a role in mood, sleep regulation, and digestive function. Maintaining balanced serotonin levels may contribute to emotional stability, restful sleep, and overall quality of life.
Silicon
As part of comprehensive health screening, a silicon blood test helps you understand your levels of this essential trace element. Monitoring silicon supports a complete picture of your bone health and environmental exposure.
Smooth Muscle Antibodies (SMA)
Smooth Muscle Antibodies (SMA) are autoantibodies commonly associated with autoimmune hepatitis. Testing SMA provides comprehensive insight into liver-related immune activity and can support early detection of autoimmune liver conditions.
Sodium
Sodium is essential for fluid and electrolyte balance. Regular monitoring supports early detection of kidney or hydration issues.
Syphilis (VDRL)
The syphilis VDRL (RPR) is a non-treponemal blood test that can reflect disease activity and is also used to follow how the body responds over time. It gives a data point, not a diagnosis. A doctor can interpret it alongside other tests.
Syphilis Screening
Syphilis screening is a treponemal antibody blood test that looks for antibodies the body may form after contact with the syphilis bacterium. It is a screening data point, not a diagnosis. A doctor can interpret it alongside other tests.
TNF Alpha
TNF-α is a master regulator of inflammation. Including it in advanced screening supports early detection of immune dysregulation and chronic inflammatory conditions.
TPO Antibodies
TPO antibodies may indicate autoimmune activity against the thyroid gland. Testing this marker as part of your proactive health routine can help detect potential thyroid issues before symptoms become apparent. Your healthcare provider can advise on the significance of your results.
TSH (Thyroid Stimulating Hormone)
Your TSH level says how hard your pituitary is pulling on your thyroid. At the laboratory that runs the test the usual range runs from 0.27 to 4.20 mE/L. If your number is above it, your thyroid is probably running slow. Below it, and it is probably running fast. That feels back to front, and it is. TSH is the signal from your pituitary, not the thyroid hormone itself. One result is not a diagnosis. So always check the reference value on your own report.
TSH Receptor Antibodies
TRAb antibodies target the TSH receptor and are primarily associated with Graves' disease. Including TRAb testing in your health assessment can help detect autoimmune thyroid conditions. Your healthcare provider can advise on whether this test is relevant for your proactive health monitoring plan.
TSI (Thyroid Stimulating Immunoglobulin)
TSI is an antibody that may signal Graves' disease, an autoimmune condition affecting the thyroid. Monitoring TSI can be a valuable part of understanding your overall thyroid health and metabolic wellbeing. Your healthcare provider can offer personalised guidance based on your results.
Thrombin Time
Thrombin Time completes a comprehensive coagulation assessment by evaluating the final clotting step — fibrinogen to fibrin conversion.
Thyroglobulin
Thyroglobulin is a protein produced exclusively by the thyroid gland and may serve as a marker of thyroid activity and size. Healthcare providers sometimes include it in comprehensive thyroid assessments to gain a fuller understanding of gland function.
Thyroglobulin Antibodies
Thyroglobulin Antibodies are immune markers that may indicate your immune system is targeting thyroid tissue. Healthcare providers sometimes use them to screen for autoimmune thyroid conditions, which can affect overall health and wellbeing if left undetected.
Total Cholesterol
Total cholesterol is the foundational lipid screening marker. Regular testing provides the first line of cardiovascular risk detection.
Total IgA
Total IgA is essential alongside coeliac screening to ensure test reliability and provides a baseline assessment of mucosal immune function.
Total Protein
The total protein test measures the combined amount of albumin and globulins in your blood. As part of a comprehensive health assessment, this test provides insight into your nutritional status, liver and kidney function, and immune system activity.
Total T3 (Triiodothyronine)
Total T3 measures the most active thyroid hormone, triiodothyronine, in your blood. This marker may provide valuable insight into your metabolic health and energy levels. Including T3 testing in your health assessment can help build a comprehensive picture of thyroid function.
Total Testosterone
Total testosterone is a vital hormone that may influence energy, muscle maintenance, bone health, mood, and libido in both men and women. Monitoring your levels can provide valuable insight into your overall hormonal health and vitality.
Toxoplasmosis IgG
A Toxoplasmosis IgG test detects IgG antibodies against the Toxoplasma gondii parasite in your blood. The presence of IgG antibodies typically indicates a past infection, suggesting that you have been previously exposed and have developed an immune response.
Toxoplasmosis IgM
A Toxoplasmosis IgM test detects IgM antibodies against the Toxoplasma gondii parasite in your blood. The presence of IgM antibodies may indicate a recent or active infection, which is particularly important to identify during pregnancy.
Transferrin
Transferrin is a key marker for understanding iron transport. Including it in your health screening provides a more complete picture of iron metabolism for early intervention.
Transferrin Saturation
Transferrin saturation provides a comprehensive view of your iron transport status by measuring the percentage of transferrin occupied by iron. As part of a thorough health assessment, this marker helps identify iron deficiency or overload for optimal health management.
What are blood values?
Blood values are the substances a laboratory measures in your blood. Think of haemoglobin, cholesterol, glucose and thyroid hormones. Each value comes back as a number with a unit. A reference range is printed beside it.
That reference range is the band most healthy people fall within. A result outside it is called an abnormal value. Abnormal does not mean ill. It is mainly a signal that needs context.
Why have your blood values measured?
A doctor orders blood work for several reasons. To make a diagnosis, or to rule something out. To look for the cause of a complaint. Or to follow how a treatment is working.
You can also have your blood values measured yourself, without a referral from a GP. People do this when they are tired for no clear reason. Or when they want to know how their liver, kidneys and metabolism are doing. A baseline is also useful if you want to compare later.
Which blood values are measured most often?
Most testing comes down to a handful of groups. The blood count measures your red cells, white cells and platelets. Liver values and kidney values show how those organs are working.
The thyroid, the vitamins and iron are also measured often. Cholesterol and glucose belong to the heart and metabolic profile. Inflammatory values show whether there is inflammation somewhere in your body. You can filter by category above.
What counts as a normal blood value?
There is no single list of normal values that applies everywhere. Reference ranges may vary between laboratories. This comes down to differences in method, equipment and the groups studied. So always read the reference range printed on your own result.
Age and sex matter too. Haemoglobin runs higher in men than in women on average. Children have different numbers again. Every value page above carries the range that belongs to it.
How do you read your result?
A single value says little on its own. Doctors look at the pattern across several values. A raised ALT alongside a raised gamma-GT points somewhere different than a raised ALT alone.
When you test through us, a BIG-registered doctor assesses your results in context. So you get back more than numbers. Always discuss treatment decisions with your GP.
Where do you get your blood drawn?
We work with independent, certified laboratories across the Netherlands. The collection points are run by those laboratories. You do not need a referral from a GP.
You choose which blood values you have measured. After the draw you get your result back digitally, with an explanation per value.
Frequently asked questions about blood values
- Which blood values are normal?
- That differs per value, per laboratory and per person. Reference ranges depend on the method used, your age and your sex. Look the value up above and read the range that belongs to it. Always compare it against the reference range on your own result.
- Which blood value indicates cancer?
- General blood work is not a suitable way to detect cancer. An abnormal value can have many different causes. Separate screening programmes exist for bowel, breast and cervical cancer. If your complaints persist, see your GP.
- What are perfect blood values?
- Perfect blood values do not exist. A reference range is a band, not a target number. Someone can sit at the edge of that band and be entirely healthy. What your values mean depends on your complaints and your history.
- Which blood value indicates inflammation?
- CRP is the most widely used inflammatory value in the Netherlands. The sedimentation rate, also called ESR, is used alongside it and responds more slowly. Both show that inflammation is present somewhere. Neither says where in your body it sits.
Reference ranges may vary between laboratories. When you order a test, a BIG-registered doctor assesses your personal results in context. For treatment decisions, discuss your results with your GP.