EPK Test (Erythrocyte Particle Concentration) – Red Blood Cell Count
B-EPK (Erythrocyte Particle Concentration) is a blood test that counts the number of red blood cells per liter of blood. Since erythrocytes are responsible for transporting oxygen from the lungs to the body's tissues, this test is central to assessing the blood's oxygen-carrying capacity and detecting abnormalities in blood formation, such as anemia or polycythemia.
Why Test EPK Test?
B-EPK is tested to assess the body's ability to transport oxygen, identify anemia and investigate its cause (such as iron or vitamin deficiencies, or blood loss), provide insight into bone marrow function, and follow up on chronic diseases that may affect blood values.
What Do High EPK Test Levels Mean?
Elevated levels (erythrocytosis/polycythemia) may indicate chronic hypoxia from lung disease, smoking, or high-altitude living, dehydration, or polycythemia vera (a rare blood disorder).
What Do Low EPK Test Levels Mean?
Low levels (erythropenia) may be due to iron-deficiency anemia, vitamin B12 or folic acid deficiency, chronic diseases affecting blood formation, bone marrow disease, or blood loss.
Symptoms to Watch For
- Fatigue and paleness
- Dizziness
- Shortness of breath
- Heart palpitations
- Weakness
- Cold extremities
Who Should Get Tested?
- People with fatigue, paleness, or dizziness
- Those experiencing shortness of breath or palpitations
- Anyone with suspected anemia or bleeding
- Patients monitoring chronic diseases affecting the blood
- Those undergoing treatment for blood disorders
How to Prepare for Your Test
No special preparation is required. Bring valid ID to your appointment.
Frequently Asked Questions
What does EPK stand for?
How does EPK relate to hemoglobin and EVF?
Is EPK the same as RBC count?
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Wellth Team
Wellth
Our content is written and reviewed by Wellth, and fact-checked against peer-reviewed research and current Swedish clinical guidelines.
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The information on this page is provided for informational purposes only and does not constitute professional medical advice, diagnosis, or treatment. Wellth provides health information and testing services but is not a substitute for clinical care. Always consult a qualified healthcare provider if you have questions about a medical condition. If you are experiencing severe or urgent symptoms, contact your doctor or call 1177 Vårdguiden. Blood test results should be interpreted by a qualified healthcare professional in the context of your complete medical history.