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Erythrocytes (RBC)

Erythrocytes (RBC) Test

An erythrocyte (red blood cell) count measures the number of red blood cells in your blood. Red blood cells are responsible for carrying oxygen from your lungs to the rest of your body and transporting carbon dioxide back for exhalation.

Turnaround 24 hours, estimate Turnaround: up to 24 hours after your blood draw (estimate).

Erythrocytes (RBC): what this test measures

This test measures the total number of red blood cells (erythrocytes) per volume of blood. Red blood cells contain hemoglobin, which binds oxygen and gives blood its red colour. The count provides information about your blood's oxygen-carrying capacity.

Erythrocytes (RBC): why this value matters

An abnormal red blood cell count may indicate various health conditions. Low counts can be associated with anemia, nutritional deficiencies, or chronic disease, while high counts may be linked to dehydration, lung disease, or bone marrow disorders. Regular monitoring supports early detection of potential issues.

Erythrocytes (RBC): how the blood test works

Referral: No GP referral needed. After the order we arrange the referral through ZorgDomein, within one business day; orders after 17:00 or at the weekend start on the next business day. ZorgDomein emails a barcode, and that barcode is what the draw site needs.
The draw: A blood draw from a vein in the arm, at a partner laboratory's draw site. No home kit, no finger prick.
Results: Turnaround: up to 24 hours after your blood draw (estimate).
Which test: Full blood test · €199,-
Where: 650+ draw sites run by independent laboratories across the Netherlands. Draw sites

Erythrocytes (RBC): when is testing worthwhile?

Red blood cell counts are typically included in a complete blood count (CBC), which may be ordered as part of routine health screening, when investigating symptoms such as fatigue or shortness of breath, or for monitoring existing conditions.

Erythrocytes (RBC): symptoms of a high or low value

Low Levels

Fatigue, weakness, pale skin, shortness of breath, dizziness, cold hands and feet, headaches.

High Levels

Headaches, dizziness, blurred vision, excessive sweating, joint pain, itchy skin, reddish complexion.

Erythrocytes (RBC): lifestyle and this value

Maintain a balanced diet rich in iron, vitamin B12, and folate to support healthy red blood cell production. Stay well hydrated, exercise regularly, and avoid smoking. If you experience persistent fatigue, consult a healthcare professional.

Erythrocytes (RBC): frequently asked questions

What can cause a low red blood cell count?

A low red blood cell count may be associated with iron deficiency, vitamin B12 or folate deficiency, chronic disease, blood loss, or bone marrow disorders. Your healthcare provider can help determine the underlying cause.

Can lifestyle changes improve my red blood cell count?

In many cases, dietary adjustments such as increasing iron-rich foods, vitamin B12, and folate can support healthy red blood cell production. Staying hydrated and avoiding smoking also help. Consult a healthcare professional for personalised advice.

Test Products

This marker is included in the following test panels.

Full blood test

Twenty values from one draw: liver, kidneys, lipids, glucose, blood count, thyroid, iron and inflammation.

ALT (Alanine Aminotransferase) AST (Aspartate Aminotransferase) ALP (Alkaline Phosphatase) GGT (Gamma-Glutamyl Transferase) Creatinine eGFR (Estimated Glomerular Filtration Rate) Total Cholesterol HDL Cholesterol LDL Cholesterol Triglycerides Glucose (Fasting) Hemoglobin Hematocrit Erythrocytes (RBC) Leukocytes (WBC) MCV (Mean Corpuscular Volume) Platelets (Thrombocytes) TSH (Thyroid Stimulating Hormone) Ferritin CRP (C-Reactive Protein)

€199,-

Results without a doctor's assessment

You receive your values with the unit and reference range. A doctor's assessment is not part of this site. Discuss your results with your GP for explanation and treatment decisions.

Erythrocytes (RBC)

€16,-