Complete blood count, iron status (ferritin, transferrin), kidney function, liver function, testosterone, and hs-CRP. For athletes and endurance sport participants.
Blood collection at collection point
After your order you receive instructions by email
Make an appointment at a collection point near you
Blood collection at 1,000+ locations across the Netherlands
The Endurance Sports Blood Test is specifically designed for athletes and endurance athletes who train intensively in sports such as running, cycling, triathlons, swimming, or football. This comprehensive test measures crucial biomarkers that directly influence sports performance, recovery, and overall health. It provides insight into anemia, iron status, kidney function, liver load, hormonal balance, and inflammatory processes that can occur during intensive training.
Endurance athletes have unique physiological needs and risks. Iron deficiency and anemia are common with intensive training, especially in female athletes. The test checks for sports anemia where the body produces too few red blood cells. Kidney function is crucial because intense exercise stresses the kidneys. Liver enzymes can be elevated due to intensive training or supplement use. Testosterone levels affect muscle recovery, strength, and libido. The hs-CRP marker helps detect overtraining and monitor recovery status. This test is suitable for athletes of all levels, from amateurs to professionals.
The results provide a complete picture of your physiological status as an athlete. Low hemoglobin and ferritin indicate anemia or iron deficiency that restrict oxygen transport and reduce performance. Elevated liver enzymes can indicate overtraining or liver strain. Low testosterone levels in men can slow recovery and lead to overtraining syndrome. Elevated hs-CRP indicates inflammation or insufficient recovery between training sessions. These biomarkers help you optimize training, nutrition, and recovery for maximum performance.
Elevated liver enzymes (ALT/AST) can indicate overtraining, supplement use, or dehydration during intensive training. High hs-CRP values indicate systemic inflammation, insufficient recovery, or incipient overtraining. Elevated hematocrit can indicate dehydration or, in extreme cases, unnatural substances. High creatinine values can indicate kidney stress due to intensive training or insufficient hydration. These values require adjustments in training intensity, recovery protocol, or nutrition.
Low hemoglobin and ferritin are very common in endurance athletes and lead to reduced oxygen transport, fatigue, and poorer performance. Iron deficiency should be corrected with supplementation under guidance. Low testosterone levels in male athletes can indicate overtraining syndrome and require training reduction and recovery. Low iron saturation means there is insufficient iron available for red blood cell production. These deficiencies are often easy to correct but have a major impact on performance if ignored.
Haemoglobin, haematocrit, erythrocytes, MCV, MCH, MCHC, leukocytes and platelets.
This test has clinical value for specific complaints or indications, but is not intended as screening without symptoms.
Rationale for this test
Dit pakket combineert meerdere standaard-bloedtesten die klinisch valide zijn bij specifieke indicaties. De meeste componenten (volledig bloedbeeld, ijzerstatus, nier- en leverfunctie) zijn opgenomen in Nederlandse zorgrichtlijnen voor gerichte diagnostiek bij klachten. Voor duursporters zonder klachten is er echter geen richtlijn die routinematige screening met dit pakket aanbeveelt. De klinische betekenis van deze tests is het grootst wanneer er concrete aanleiding is, zoals vermoeidheid, prestatievermindering of andere symptomen.
Dutch clinical guidelines and healthcare organisations
We recommend consulting these independent sources before ordering a preventive health check.
Brochure on preventive health checks: careful choice, reliability, pros and cons, checklist.
Independent information about preventive health checks from the National Institute for Public Health and the Environment.
Reliable patient information about illnesses and complaints from Dutch GPs (NHG).
Public-facing website of the Dutch Society for Clinical Chemistry with explanations of blood tests and laboratory values.
Practical information
After ordering we generate a referral letter and email you the instructions. You pick a collection point yourself and book an appointment there. Blood is drawn at the location, processed at the lab, and your result arrives digitally.
Often within a few working days. How soon you can be seen depends on how busy the location is and the type of analysis. For specialist analyses we first ship collection materials, which takes a bit longer.
At most collection points yes. Some accept walk-ins. This is clearly indicated per location. You choose the location that works best for you.
That depends on the test. Whether fasting is required, and from what time, is clearly stated in the instructions you receive after ordering. No surprises at the counter.
It varies per analysis: from same-day to a few working days. Standard values often come back quickly; analyses that go to an external lab can take a bit longer. You receive your laboratory report securely by email. It lists the measured values, units, reference ranges and any flags added by the laboratory.
We work with 1,000+ collection points across the Netherlands. After ordering you'll see which locations near you are available and you pick where you'd like to go.
“Very positive experience”
From ordering to having my blood drawn, everything went smoothly and was well organised. I really appreciated being able to visit a blood collection location in my own town so quickly. I received clear instructions beforehand, and the results arrived promptly by email too. Very satisfied!
“Good communication”
This company responds to questions thoroughly and promptly. The entire process, from requesting the test to having blood drawn and receiving the results, runs very smoothly. Overall, I am very satisfied!
“Wide choice of tests, fast and affordable”
You can choose the tests yourself. Fast delivery and processing, clear instructions and affordable.
“I am satisfied with the service”
I received a referral by email, just like from a GP. I did not have to send anything by post and could quickly visit a local blood collection centre. The results were fast and clear. The price was good, not too expensive, and all messages were secure.
“A very good experience”
A very good experience! I received quick answers to my questions, a custom blood test was put together, everything was arranged smoothly, and I could have my blood drawn by a healthcare professional nearby. The results were available within a few days. In short, very satisfied!
“Very good customer service”
The customer service is very good. I had a complex request, which caused an issue at the blood collection centre. Customer service resolved it very well. They also offer a wide range of tests at a reasonable price.
“Everything was well organised”
Everything was well organised. The products were delivered within a few days and, after sending in the samples, the results arrived within a few days too. Communication and information throughout the process were clear and friendly.
“Fantastic service”
Fantastic service! Very good customer service that responds quickly and thinks along with you. Good prices. I will definitely use BloedCheckup's services again.
“Very happy to have found this business”
Very happy to have found this business. We need to check our blood more often :) The process was easy. They sent me the kit at home, then I had to go to a clinic with the papers and they knew what they had to do. I got the results in less than a week.
“Smooth process and good support”
Amazing website experience. I ordered various tests for 2 people. We went to one of the supported centers and took samples. Also after the results were ready, I needed a letter from the laboratory and they prepared the letter for me in no time. Definitely recommended.
“Amazing service!”
Received a packet with everything needed, went to a walk in clinic (Amsterdam DC Clinic) where my blood was drawn and I was out the door within 5 minutes, and then after posting the samples, received results 2 days later. Results were easy to understand as well. Amazing service, would highly recommend!
“Great customer service”
I ordered a test through bloedcheckup.nl but later realized I no longer needed it. I contacted their support team, and they were very quick, responsive, and helpful in handling my cancellation. The whole process was smooth and efficient. Great customer service!