Q & A
View the different categories with frequently asked questions
Ordering & Account
Do I need a referral from my GP?
No, you don't need a referral from your GP. You can order a blood test directly online. However, we recommend always contacting your GP if you have doubts about results.
What happens after my order?
After your order, you'll receive instructions by email. Depending on your test and location, you'll receive a request form by email to print, an invitation via Zorgdomein to make an appointment, or a package with materials and referral letter by post. With a package, you bring it to the collection point. Most locations require an appointment in advance; some locations also offer walk-in availability.
From what age can I order a test?
You must be at least 16 years old to order a blood test yourself. Under 16? This is also possible — enter the patient details of the person the test is intended for. Contact us if you have any questions.
Can I combine multiple tests?
Yes, you can combine different tests in one blood sample. This is efficient and you only need to have blood drawn once for all desired examinations.
Testing & Preparation
Do I need to fast for all tests?
Not always, but it is recommended. We advise having blood tests done in the morning between 08:00 and 10:00, preferably fasting. For some tests, 12 hours of fasting is required. Check per test whether fasting is needed
Can I continue taking my medications?
Yes, continue taking your medications unless your doctor has advised otherwise. Medication usually doesn't affect test results.
How long are my test results valid?
Blood values are a snapshot in time. Most results are clinically relevant at the moment of collection. To track trends, we recommend testing periodically, for example every 3 to 6 months.
Collection Points & Blood Draw
Where can I go for blood draw?
We select a suitable collection point from our network of 900+ locations throughout the Netherlands based on your address. You'll receive instructions on how to make an appointment. View all locations
Are there costs associated with blood draw?
Blood draw is not included in the test price. Phlebotomy costs are billed separately and clearly shown in your cart.
How long does a blood draw take?
The blood draw usually takes only 2-3 minutes. The entire procedure, including administration and preparation, takes about 10 minutes.
What if I'm afraid of needles?
The professionals at our collection points have daily experience with people who are nervous about blood draws. They take time for you and know exactly how to put you at ease.
Results & Interpretation
When will I get my results?
It depends on the type of test and the location. For collection at a blood draw point, you often have results the same day or the next working day. If you send in a test kit, it may take 3–5 working days after receipt by the laboratory. For urgent findings we'll contact you by phone earlier.
How do I receive my results?
Your test results are securely sent via Zivver to the email address you provided during ordering. You'll receive a secure email that's visible for 30 days — after that the message is deleted, so make sure to download your results in time. You'll also receive an access code via a separate email for maximum security. More information about Zivver can be found at zivver.com.
What do abnormal values mean?
Abnormal values can have various causes. We always recommend discussing abnormal results with your GP for proper interpretation and possible follow-up steps.
Can I have additional tests done?
Yes, within 5 days after the lab receives your sample you can request additional tests from the same blood sample, without needing to be pricked again.
Payment & Costs
Which payment methods do you accept?
You can pay via iDEAL, credit card (Visa/Mastercard) and other common online payment methods. Payment is always made in advance when placing your order.
Are there extra costs for shipping?
Yes, shipping (test kit and return via medical post) is billed separately and shown in your cart.
Will I receive an invoice?
Yes, you'll automatically receive a digital invoice by email after your order. You can use this for possible claims with your health insurer.
Compliance & WTZA
Are you registered under the Dutch WTZA (CIBG Healthcare Providers Portal)?
Yes. D3V B.V. is registered as a healthcare provider in the Dutch CIBG Healthcare Providers Portal (WTZA notification). WTZA registration is a legal notification obligation, not a quality label or endorsement.
Useful tips
Plan your appointment smartly
Schedule your blood draw in the morning between 08:00 and 10:00. This is the best time for most blood tests. For home tests: send your sample the same day via the included medical post.
Ask questions to professionals
Always discuss abnormal results with your GP. They can interpret the values in the context of your overall health.
Save your results
You receive your test results by email. Keep the email so you can always find them back.
When in doubt: call us
Have questions about the process, preparation or results? Feel free to contact us via our contact page.
More questions?
Is your question not listed? Please contact us. We're happy to help you further.