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
- Receive your results digitally by email
Post-COVID Syndrome Basic
Hemoglobin, MCV, iron, ESR, creatinine, eGFR, platelets, and vitamin D. For persistent symptoms after coronavirus.
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
- Receive your results digitally by email
What is Post-COVID Syndrome Basic?
The Post-COVID Syndrome Basic blood test is specifically developed for individuals with persistent symptoms after a coronavirus infection. Long COVID or post-COVID syndrome is characterized by prolonged symptoms such as extreme fatigue, shortness of breath, muscle weakness, concentration problems, and a general feeling of unwellness. This test examines important markers that can explain why your symptoms persist: residual infection, kidney status, blood counts, and vitamin D. It helps identify if there are treatable causes for your post-COVID symptoms.
What is tested?
- Hemoglobin (Hb) – Oxygen-transporting protein
- MCV – Mean corpuscular volume of red blood cells
- Iron – Available iron for oxygen transport
- ESR (Sedimentation Rate) – Erythrocyte sedimentation rate, inflammation marker
- Creatinine – Kidney function
- eGFR (Kidney Function) – Estimated glomerular filtration rate
- Platelets – Blood platelets
- Vitamin D – For the immune system and general health
Why should you get Post-COVID Syndrome Basic done?
This test is important for anyone with persistent symptoms after COVID-19 such as extreme fatigue, shortness of breath, muscle weakness, or cognitive problems. COVID-19 can affect the blood, kidneys, and immune system. The ESR (sedimentation rate) measures if there are still active inflammations. Hemoglobin and iron check for anemia that explains fatigue. Kidney function can be affected after COVID. Platelets can be disturbed, causing clotting problems. Vitamin D is crucial for the immune system and recovery. This test helps identify treatable causes of post-COVID symptoms.
What does it indicate?
The results provide insight into possible causes of your post-COVID symptoms. This basic test measures:
- Inflammation Status – ESR (sedimentation rate) for persistent inflammation
- Blood Counts – Hemoglobin, iron, and MCV for anemia
- Kidney Function – Creatinine and eGFR
- Coagulation System – Platelets for blood platelets
- Immune System – Vitamin D for recovery and immunity
This information assists in developing a treatment plan for post-COVID recovery.
What does a high level mean?
Increased ESR indicates persistent inflammation after COVID that may require treatment. Elevated hemoglobin is rare but can indicate dehydration or blood thickening. High platelets can occur in response to inflammation. Elevated creatinine means reduced kidney function, which sometimes occurs after severe COVID and requires further evaluation. Very high vitamin D due to overdose of supplements can cause side effects. These abnormalities require medical evaluation and treatment.
What does a low level mean?
Low hemoglobin and iron are common after COVID and cause extreme fatigue and shortness of breath. Iron deficiency should be treated with supplements. Low platelets can indicate immune problems or bone marrow disorders after COVID. Low MCV indicates iron deficiency anemia. Low vitamin D weakens the immune system and significantly delays recovery - supplementation is essential. All these deficiencies are treatable, and improvement in these values often leads to a significant reduction in post-COVID symptoms such as fatigue and muscle weakness.
Frequently asked questions
Answers to what people usually want to know.
How does it work from order to result?
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.
How quickly can I get tested?
Usually very quickly. Collection points typically have slots within a few days, sometimes even same-day. It depends on how busy the location is. For a few specialist analyses we first ship collection materials, which takes a bit longer.
Do I need to book an appointment?
At most collection points yes. Some accept walk-ins. This is clearly indicated per location. You choose the location that works best for you.
