Absolute Eosinophil Count (AEC) Test in Delhi

Abosolute Eosinophil Count

Eosinophils are a type of white blood cell that help the immune system to fight off certain infections, especially parasitic infections, and are also involved in allergic reactions and asthma. The Absolute Eosinophil Count (AEC) measures the number of these cells in a microliter of blood. A normal eosinophil count typically ranges from 0 to 500 cells/μL. High levels can signal allergic or inflammatory conditions.

Why is the AEC Test Done?

Investigate allergic symptoms (sneezing, rashes, wheezing, etc.)
Help diagnose:
Asthma
Eczema
Allergic bronchopulmonary aspergillosis (ABPA)
Hypereosinophilic syndrome
Parasitic infections
Monitor diseases that involve inflammation or immune system overactivity

Symptoms

Chronic cough or wheezing
Recurrent nasal congestion, sneezing, or skin rashes
Shortness of breath not explained by common infections
Fatigue, fever, or weight loss in chronic allergic conditions
Suspected asthma or ABPA

How to Prepare

No fasting or special preparation is needed before the test.
Inform your doctor about any medications you’re taking, as steroids or anti-allergy drugs can affect the results.

How the Test is done?

A routine blood sample is taken from a vein in your arm.
The blood is analyzed to count the number of eosinophils.
You’ll get results within a few hours to 1 day.

What the Test Measures

The test directly tells how many eosinophils per microliter (μL) of blood are present.

Normal Range: 0 – 500 cells/μL
Mild increase: 500–1500 cells/μL
Moderate: 1500–5000 cells/μL
Severe: >5000 cells/μL

Frequently Asked Questions (FAQs)

1. What does a high eosinophil count mean?

It could indicate an allergy, asthma, ABPA, or a parasitic infection. Rarely, it may be due to a blood disorder or autoimmune disease.

2. Can my eosinophil count change over time?

Yes, eosinophil levels can vary based on allergen exposure, seasonal changes, or ongoing treatment like corticosteroids.

3. Does a high count always mean I have a disease?

Not always. Slight elevations are common in mild allergies or after infections and might not require treatment unless accompanied by symptoms.

4. Is the test painful or risky?

No. It’s a simple venous blood draw with minimal discomfort and no significant risks.