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Blood Test Without Referral

A blood test without referral — testosterone, recovery markers, and inflammation. Lab-verified at 650+ locations across the Netherlands, with a personalized report from a registered physician and actionable insights.

Build Your Test View Blood Tests
Complete Health Hormones & TRT Key Health Markers Whoop
Doctor's Assessment Included
ISO 15189 Accredited Labs
BIG-Registered Physician
Results in a few business days

Choose your blood test

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Don't see what you need? build your own test

Build your own performance panel

Choose from 182 biomarkers and only pay for what you want measured. Testosterone, CRP, ferritin, IGF-1. No unnecessary markers.

Build Your Test
182 biomarkers available
Total Testosterone CRP (C-Reactive Protein) IGF-1 (Insulin-like Growth Factor) Ferritin Magnesium See all

Which markers belong to your goal?

Six to eight questions and you know which markers match your goal, and which you can skip.

Your goal

What would you like insight into?

I train a lot I have symptoms One specific area I monitor medication
See all questions

From order to report in 4 steps

01

Choose your markers

Pick a performance panel or build your own test. Testosterone, CRP, ferritin, thyroid. You choose what gets measured.

02

Receive your lab referral

Within 1 business day you'll receive an email from ZorgDomein with a barcode. Orders outside business hours are processed from the next business day.

03

Get tested at a lab near you

Show the barcode on your phone and bring a valid ID. No BSN? Then bring your printed referral form instead. Done in under 15 minutes.

04

Receive your report from the doctor

A BIG-registered physician assesses your results and writes a personal report. On your dashboard within a few business days.

650+ phlebotomy points across the Netherlands
12 provinces

Collection points across the Netherlands

In all 12 provinces, run by partner laboratories.

View all locations

New to the Netherlands?

A private blood test in English. No GP referral, partner draw locations nationwide, and every result assessed by a BIG-registered doctor.

Blood testing for internationals

Every result assessed by a doctor

View all blood tests See a sample report
Performance Report
Optimal
Testosterone
Low
Reference range
High
Ferritin
Low
Reference range
High
CRP (Inflammation)
Low
Reference range
High
Vitamin D
Low
Reference range
High
Lab-verified

What you get with every test

Series · Total Testosterone

Reference 8.64 – 29 nmol/l Sample
3 measurements · nmol/l
14,2 18,6 22,4 29 8,64
test 1 test 2 test 3
  1. 01

    See your trend over time

    Every new test sits next to the previous one, on the same timeline. You read the line instead of one isolated number, and nothing gets lost between two labs.

    3 measurements

  2. 02

    You assemble your own panel

    No fixed package. You pick which values get measured — from a single marker to a full panel.

    182 values in the catalogue

  3. 03

    Every value explained

    Each value carries its unit, its reference range and what the number means.

    Unit and range

  4. 04

    No referral, no waiting list

    You order it yourself. No trip to the GP first, no waiting list and no conversation beforehand about why you want to know.

    No referral

  5. 05

    Reviewed by a BIG-registered physician

    Your results are reviewed by a physician registered in the Dutch BIG register. That register is public.

    BIG register

  6. 06

    ISO 15189-accredited partner laboratories

    Your blood is analysed in laboratories accredited to the standard for medical laboratories.

    ISO 15189

Reference range from our own reference values · plotted values are illustrative

Seven free calculators

Seven calculators, the same formulas as the lab. Set your values and watch live what your body needs. Start with your calorie needs.

Calorie needs / Mifflin-St Jeor Live
Profile
Activity
Maintenance per day
2 830 kcal
Cutting 2 330 kcal
Bulking 3 130 kcal
An estimate based on your input. The full tool goes further with your goals. Full calculator
More tools View all tools
Blood Value Checker Reference ranges Biological age PhenoAge · 9 blood values Free testosterone calculator Vermeulen formula Heart age calculator Framingham model Kidney function calculator (eGFR) CKD-EPI 2021 Cholesterol check Non-HDL & ratios Blood test finder Body fat calculator

Understand Your Health Markers

182 markers explained
CH 01 / Liver

LDH

In units per litre (U/l), the LDH measurement reflects how active lactate dehydrogenase is in the blood; LD and LDH both refer to this one test.

Unit u/l Category Liver Read about LDH CH 02 / Hormones Reference

Cortisol

This test measures the concentration of cortisol in your blood, reflecting adrenal gland function and your body's current stress response.

Unit nmol/l normal 133 – 537 Category Hormones Read about Cortisol CH 03 / Inflammation Reference

hs-CRP

This test uses a highly sensitive assay to detect low concentrations of CRP that standard CRP tests cannot measure.

Unit mg/l normal < 3 Category Inflammation Read about hs-CRP CH 04 / Minerals

Magnesium

This test measures the level of magnesium in your blood serum.

Unit mmol/l Category Minerals Read about Magnesium CH 05 / Hormones Reference

IGF-1

This test measures the concentration of IGF-1 in your blood.

Unit nmol/l normal 13 – 50 Category Hormones Read about IGF-1 CH 06 / Hormones

Free Testosterone

This test measures the fraction of testosterone not bound to proteins like SHBG or albumin.

Unit pmol/L Category Hormones Read about Free Testosterone
Explore All 182 Markers

Articles on performance and blood values

INTEL/001

Testosterone: symptoms, blood values and what affects your level

Hormones & TRT · INTEL/002

Understanding your testosterone levels

Hormones & TRT · INTEL/003

Iron bisglycinate: what it does, the dose, test first

Vitamins & Minerals ·
All articles

Frequently Asked Questions

No. You order your blood test directly online. We arrange the lab referral via ZorgDomein. No referral needed, no waiting list. Most athletes want markers tested that aren't part of a standard blood panel.
Standard blood tests focus on symptoms and are limited to a basic blood count. Markers like testosterone, IGF-1, or SHBG typically aren't included. With Enhancedhealth, you choose which markers to measure, whenever you want.
Yes, significantly. Intense training temporarily raises CRP (inflammation) and CK (muscle breakdown) by 200-500%. Testosterone may drop after heavy sessions. Schedule your blood draw on a rest day, at least 24-48 hours after your last intense workout.
Most markers (testosterone, CRP, iron, thyroid) are available within a few business days. In some cases, certain markers may take longer. We'll let you know as soon as they're ready.
For most athletes, quarterly is optimal. It lets you track trends across training cycles (build, peak, recovery). For specific goals like a cut, bulk, or competition prep, monthly testing can be valuable.
There's almost always a blood test location near you: 650+ certified labs across the Netherlands. Most people have a lab within 10 minutes. Tip: schedule early morning. Fasting blood gives more accurate results for testosterone, glucose, and lipids.
Yes. Your Enhancedhealth dashboard shows all measurements in trend charts. Compare testosterone, CRP, iron, and other markers across training cycles. Objective data instead of guesswork.
The essentials: testosterone (anabolic status), CRP (systemic inflammation), ferritin (iron stores), thyroid (metabolism), and vitamin D (bone and immune function). Browse our panels page to choose.
We create a lab referral via ZorgDomein. Within 1 business day you receive an email with a barcode. Orders outside business hours are processed from the next business day. If we need more information from you, we will contact you. You can visit the lab at any time.
Two things: a valid ID and the barcode from your ZorgDomein email (showing it on your phone is fine). The lab staff handles the rest. No BSN? Print the referral form from the ZorgDomein patient portal.
Depends on the location. Some labs accept walk-ins, others require an appointment. You'll see this when choosing your lab location, and we'll provide a booking link if needed.
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