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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Folate (Folic Acid)
Folate measures vitamin B9 levels, a water-soluble nutrient involved in cell division and DNA synthesis. Monitoring your folate status may help you maintain awareness of this important aspect of your nutritional health.
Food Allergy Panel
The Food Allergy Panel is a comprehensive IgE-based screening tool that identifies sensitisation to multiple common food allergens in a single test. Proactive testing helps build a clear picture of your immune reactivity.
Food Mix Panel (fx77)
The Food Mix Panel (fx77) is an efficient first-line IgE screening tool that covers common food allergens. It helps identify whether further allergen-specific testing is needed as part of a proactive health approach.
Food Screening Panel (fx5)
The Food Screening Panel (fx5) is a quick, efficient first-line test for the six most common food allergens. It is an ideal starting point for proactive allergy assessment as part of a preventive health panel.
Free T3 (Triiodothyronine)
Free T3 is considered the most active thyroid hormone and may influence your overall metabolism, energy levels, and wellbeing. Healthcare providers often view it as an important indicator of how effectively your body is utilising thyroid hormones.
Free T4 (Thyroxine)
Free T4 is the primary hormone released by the thyroid gland and may serve as a key indicator of overall thyroid function. Healthcare providers often use it alongside TSH to assess whether your thyroid is producing appropriate hormone levels for your body's needs.
Free Testosterone
Free testosterone is the bioavailable portion of testosterone that directly influences your energy, muscle maintenance, and mood. Monitoring this marker may help detect hormonal changes early. Discuss your results with a healthcare provider for personalised health guidance.
GGT (Gamma-Glutamyl Transferase)
GGT is one of the most sensitive liver enzymes available for health screening. Regular monitoring helps detect bile duct and liver issues early, supporting proactive and informed health management.
Gliadin IgA
Gliadin IgA complements anti-TTG in comprehensive coeliac disease screening. Including both markers provides a more reliable assessment of gluten-related immune activity.
Glucose (Fasting)
Fasting glucose is one of the most important screening markers for metabolic health. Regular testing supports early detection of pre-diabetes and diabetes prevention.
Gonorrhea (PCR)
This PCR test looks for the DNA of Neisseria gonorrhoeae, the bacterium behind gonorrhea. The sample is usually urine or a swab, not blood. It can provide clarity even when there are no symptoms.
Grass Pollen Panel (gx3)
The Grass Pollen Panel (gx3) identifies sensitisation to common grass pollens. Knowing your specific allergen triggers enables targeted treatment and proactive symptom management during pollen season.
H. pylori IgG
An H. pylori IgG test detects IgG antibodies against Helicobacter pylori, a bacterium that can infect the stomach lining. A positive result may indicate a current or past H. pylori infection, as IgG antibodies can persist even after successful treatment.
HDL Cholesterol
HDL cholesterol is the amount of cholesterol sitting inside your HDL particles. Those particles collect cholesterol from around your body and bring it back to your liver. That is where HDL gets its nickname of good cholesterol, and that nickname is the reason this value is almost always read wrongly. HDL is not good and LDL is not bad. HDL is above all a gauge of your metabolism: the value drops with excess weight, smoking and inactivity, and those are the things that carry the risk. And more is not automatically better. On this page you can read in plain language what your HDL value means, when it is too low, and why a high HDL is no certificate of health.
HIV 1/2 Antibody + p24 Antigen
This 4th-generation combination blood test looks for both HIV antibodies and the p24 antigen, which together allow relatively early detection. It can offer clarity and peace of mind after a possible exposure. A positive result is not a diagnosis on its own and would always need confirmatory testing.
HIV Screening
HIV screening is a blood test for HIV antibodies and antigen, often used for routine, peace-of-mind checks. It can give clarity about your status without you needing any symptoms. A reactive result is never a diagnosis on its own and would always be confirmed with further testing.
HIV-RNA PCR
An HIV RNA test uses PCR to detect the genetic material (RNA) of the virus directly, which allows some of the earliest possible detection. It is a more specialized, higher-cost test often considered after a recent possible exposure. A result would always be interpreted by a doctor, and any reactive finding needs confirmatory testing.
HLA B-27 (PCR)
HLA B-27 is a one-time genetic test providing lifelong information about spondyloarthropathy susceptibility. Proactive testing helps interpret inflammatory back symptoms.
HOMA-IR
HOMA-IR provides a comprehensive assessment of insulin resistance by calculating a score from fasting glucose and insulin levels. As part of a thorough metabolic risk evaluation, this marker helps identify early signs of insulin resistance and supports proactive health management.
HTLV I+II
An HTLV I+II test screens for antibodies against Human T-Lymphotropic Virus types 1 and 2. These retroviruses can infect T-cells and, in some cases, may be associated with serious conditions such as adult T-cell leukaemia or HTLV-associated myelopathy.
Haptoglobin
A haptoglobin test measures the level of haptoglobin protein in your blood. Haptoglobin binds to free hemoglobin released from damaged red blood cells, and its levels can help assess whether red blood cells are being destroyed faster than normal.
HbA1c (Glycated Hemoglobin)
HbA1c is the gold standard for assessing diabetes risk and long-term metabolic health. Regular monitoring is essential for proactive prevention.
Hematocrit
Hematocrit, what is that exactly? It is simpler than the word suggests. Your blood consists of fluid and cells, and hematocrit says what percentage of it is cells. If your report says 0.44, then 44 percent of your blood is red blood cells. Because it is a percentage, how much fluid you have in your blood counts too. If you drank little on the day of the test, the number comes out higher. No cells were added. Your blood was simply a little more concentrated.
Hemoglobin
Hemoglobin is one of the most fundamental markers of blood health and oxygen-carrying capacity. As part of a comprehensive health assessment, tracking hemoglobin provides reassuring insight into your overall vitality and helps identify potential issues early.
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.