40,-
Vitamin D plays a role in bone strength, muscle function and the immune system. A measurement provides insight into your 25-OH vitamin D level, with personal explanation by our doctors.

One specific blood value, no referral needed
All 42 blood values you can order individually, most chosen first.
40,-
Vitamin D plays a role in bone strength, muscle function and the immune system. A measurement provides insight into your 25-OH vitamin D level, with personal explanation by our doctors.
30,-
Vitamin B12 (cobalamin) plays a role in the production of red blood cells and the functioning of the nervous system. A test gives insight into your B12 level, with personal explanation from our doctors.
30,-
Folic acid (vitamin B11 in the Netherlands, B9 internationally) is essential for cell growth, DNA production, and blood formation. A test gives insight into your folate status, with personal explanation from our doctors.
60,-
Vitamin A is a fat-soluble vitamin with a role in vision, the skin, and the immune system. Because the body stores vitamin A, the level can also become too high with excessive supplementation.
50,-
Vitamin B1 (thiamine) is needed for energy metabolism and nerve function. A test gives insight into your vitamin B1 level in the blood.
50,-
Vitamin B6 (pyridoxine) plays a role in protein metabolism, the nervous system, and the production of neurotransmitters. With this vitamin the level can also be too high, for example with long-term supplementation.
30,-
Ferritin reflects the amount of iron stored in the body. A test gives insight into your iron stores, with personal explanation from our doctors.
20,-
Serum iron is the amount of iron circulating in your blood at the moment of the blood draw. A test gives insight into that circulating iron, as part of the broader picture of your iron status.
40,-
The thyroid regulates your metabolism, energy, and body temperature. With TSH and Free T4, you get a clear overview of thyroid function, with personal explanation from our doctors.
55,-
Anti-TPO are antibodies against the thyroid enzyme thyroid peroxidase. Their presence fits with an autoimmune thyroid condition such as Hashimoto's, and gives context to an abnormal thyroid result.
55,-
Free T3 is the most active thyroid hormone, largely formed from T4 in the tissues. A test adds to TSH and Free T4 and gives insight into the hormone that does the work inside the cells.
40,-
Free T4 is the thyroid hormone thyroxine that circulates in your blood unbound to protein, and is therefore available to the tissues. A test gives insight into what your thyroid itself produces.
40,-
Testosterone is the primary male sex hormone and plays a role in muscle mass, energy, libido, and mood. A test gives insight into your level, with personal explanation from our doctors.
40,-
Cortisol is a hormone that plays a role in stress, energy, and metabolism, among other things. A morning measurement gives insight into your cortisol level, with personal explanation from our doctors.
50,-
DHEA-S is an adrenal hormone that serves as a precursor for the sex hormones. The level declines gradually with age and gives insight into the androgen production of the adrenal gland.
40,-
FSH is a hormone from the pituitary gland that drives the maturation of the follicles in women and plays a role in sperm production in men. With personal explanation from our doctors.
40,-
LH is a hormone from the pituitary gland that drives the sex glands. In men LH stimulates testosterone production, in women LH peaks around ovulation. With personal explanation from our doctors.
40,-
Oestradiol (E2) is the most important oestrogen and plays a role in the menstrual cycle, the bones, and the menopause. In women the level fluctuates considerably across the cycle, so the moment of testing partly determines the result.
40,-
Progesterone is formed after ovulation and prepares the womb lining. The level depends strongly on the point in the cycle, which is why testing usually takes place during the second half of the cycle.
40,-
Prolactin is a hormone from the pituitary gland, known for breastfeeding, but present in men as well. An elevated level can affect the cycle or libido, and is often temporary in nature.
40,-
SHBG is the transport protein that binds sex hormones in your blood. The level of SHBG helps determine how much testosterone remains freely available, with personal explanation from our doctors.
Free testosterone is the portion of your testosterone that is not bound to protein and is therefore biologically available. This measurement helps to interpret your total testosterone level, with personal explanation from our doctors.
30,-
HbA1c gives a picture of your average blood sugar over the past 2–3 months. A test provides insight into your blood sugar regulation, with personal explanation from our doctors.
20,-
Glucose is your blood sugar level at the moment of the blood draw. Measured while fasting, it gives insight into the way your body regulates blood sugar.
40,-
Insulin is the hormone from the pancreas that lowers blood sugar. Measured while fasting, it gives additional insight alongside glucose and HbA1c, for example with questions about sensitivity to insulin. Fasting is required.
20,-
The cholesterol profile, total cholesterol, HDL, LDL, and triglycerides, provides insight into your cardiovascular risk factors, with personal explanation from our doctors.
20,-
HDL cholesterol carries excess cholesterol back to the liver, which is why it is often called "good cholesterol". A test provides insight into your HDL level, with personal explanation from our doctors.
120,-
Homocysteine is an amino acid whose elevated level is associated with cardiovascular risk factors and B vitamin status. A test provides insight, with personal explanation from our doctors.
20,-
LDL cholesterol is the cholesterol that can settle in the artery wall, which gives it a central role in the risk of cardiovascular disease. A test provides insight into your LDL level, with personal explanation from our doctors.
20,-
Triglycerides are the fats the body stores as energy. The level is strongly influenced by your last meal and by alcohol, and is linked to lifestyle, weight, and blood sugar regulation.
45,-
Magnesium is a mineral that plays a role in more than 300 enzymatic processes, including muscle and nerve function. A test gives insight into the magnesium level in your blood.
45,-
Calcium is a mineral that plays a role in building bone, in muscle contraction and in the conduction of nerve signals. A test gives insight into the calcium level in your blood.
45,-
Zinc is a mineral with a role in immune defence, wound healing, the skin, and taste. A serum zinc measurement gives insight into the zinc level in your blood.
Creatinine and eGFR together give insight into the filtration function of your kidneys. The eGFR is calculated based on your creatinine level, among other factors.
20,-
Potassium is an electrolyte found mainly inside the cells that plays a role in the signal conduction of muscles and the heart. A test gives insight into the potassium level in your blood.
20,-
Sodium is the most important electrolyte outside the cells and helps determine the fluid balance. A test gives insight into the water and salt balance in your blood.
20,-
Urea is a waste product of protein metabolism that is excreted by the kidneys. A test gives insight into the urea level in your blood, as part of the picture of your kidney function and fluid balance.
25,-
Bilirubin is a breakdown product of red blood cells that is processed by the liver and leaves the body through bile. A test gives insight into how your liver processes bilirubin.
35,-
Gamma-GT and alkaline phosphatase are enzymes that point more towards the bile ducts than towards the liver cells. Together they give insight into the drainage of bile.
35,-
ALT and AST are enzymes found mainly in the liver cells. When they are released into the blood, that gives insight into irritation or damage to liver cells.
You pay the price of the blood value or values you choose, plus one-off blood draw costs per order. If you combine several blood values in a single order, you pay those costs only once. Every result comes with a personal explanation from our doctors, usually within a few working days and without a referral.
With Bloodworks Select you build a broader blood test yourself and combine several markers in one order, with one-off blood draw costs.
Build your own testYes. You choose which blood value you want tested and order it on its own, without having to buy a complete package.
No, you can order an individual blood value directly, without a referral from your GP.
No. Blood draw costs are charged once per order. If you combine several blood values in one order, you pay those costs only once.
Yes. With Bloodworks Select you build your own test and combine several blood values in a single blood draw and a single order.
Your result is usually available within a few working days of the blood draw. Some tests take slightly longer.
Yes. Every result includes a personal explanation by our doctors, in plain language, as a starting point for your own insight or a conversation with your care provider.
Use the search function or the categories to find a specific blood value. If you are unsure, a broader package or Bloodworks Select often gives a more complete picture.
Yes. Alongside individual blood values we offer value packages and theme tests that combine several values in one blood draw.
Want to combine several values? Build your own test with Bloodworks Select or view the value packages.
Customer service
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