General Information About the Test
EOS (Eosinophil) is a specific subtype of white blood cells (leukocytes) that play a role in the immune system. It is measured automatically as part of a routine Complete Blood Count (CBC/Hemogram) panel. A high level of eosinophils in the blood indicates that the body is undergoing a severe allergic reaction (asthma, hay fever, eczema) or is fighting intestinal parasites/worms.
Test Process and Preparation
Eosinophil cell count and laboratory process.
Is an elevated eosinophil count dangerous?
Mild elevations are typically seen during seasonal allergic transitions or parasitic infections and return to normal with treatment. However, extreme elevations (Eosinophilia) are investigated thoroughly by a physician as they can be a symptom of rare autoimmune diseases or certain blood disorders.
Do I need to give a separate blood sample for the test?
No. It can already be seen as EOS or the Eosinophil percentage in the results report of a routine Complete Blood Count (CBC/Hemogram) test you take for any reason.
Does medication use affect the results?
Yes, allergy medications or medications containing cortisone can suppress the amount of eosinophils in the blood, causing it to appear low.
The information on this page is for informational purposes only. The results of medical tests must be evaluated by specialist physicians.
