Absolute Eosinophils count is a blood test that is performed to measure the number eosinophils (a type of white blood cells (WBCs)) in the blood. Eosinophils are formed in the bone marrow and remain there for approximately 8 days until matured. After maturation, they enter the blood vessels and travel to the destined tissues, where they may remain for around 1 - 2 weeks. Eosinophils play a major role in fighting various inflammatory processes and especially allergic disorders, viral and parasitic infections.
Why get tested?
The test measures the number of eosinophils present in the bloodstream. The count is derived after performing some calculations and is suggestive of any parasitic infection or allergy in the body. The test may be conducted as a part of the complete blood count test or as a part of routine health check-up.
This test includes
Absolute Eosinophils Count
No special preparation is needed for the test.
It is advised that the patients must inform their doctor about any allergies, medical conditions and ongoing medicines before undergoing the test.
Frequently asked questions
Q.What can one expect during an Absolute Eosinophils Count blood test?
During the test, the lab technician will have to draw blood from the patient to check the Absolute Eosinophils Count. The blood sample will be collected from a vein in the arm. The sample collection usually takes only 10 to 15 minutes.
-At first, the lab technician will cleanse the area from where the blood is to be drawn.
-A tight elastic band will then be tied around the upper section of the arm to make it easier for the blood to be drawn.
-A needle will then be injected slowly into the arm and the blood will be collected in a sterilized vial.
-The elastic band will then be removed and the patient may be asked to fold the arm upwards to avoid further bleeding.
-The sample will then be sent to the lab for further analysis.
Q.What does the absolute Eosinophil count signify?
Normal Eosinophil count is less than 500 cells per microliter. In children, the number may vary with age. The eosinophil count may also be affected by the time of the day. In healthy individuals, the number of eosinophils is usually low during the morning and high in the evening. Having a high absolute eosinophil ratio may indicate a condition known as eosinophilia. This condition may lead to damaged tissues. The high number of eosinophils may also indicate eczema, asthma, Crohn’s disease, fungal infections, parasitic infections, drug reactions, autoimmune conditions such as rheumatoid arthritis, lupus, spondylitis, etc.
A lower count of the eosinophils may reflect alcohol intoxication or overproduction of certain steroids such as cortisol in the body.