Absolute Eosinophil Count (AEC), Whole Blood

What it is:
This test measures the number of eosinophils, a type of white blood cell involved in allergic reactions and defense against parasites, in the blood.

Uses

• Diagnose allergic conditions and parasitic infections

• Monitor eosinophilic disorders

Symptoms That May Lead to the Test

• Asthma, allergies, or eczema

• Persistent cough or wheezing

• Itching or rashes

• Suspected parasitic infection

Abnormal Results

• High levels:

  • Allergies or asthma

  • Parasitic infections

  • Certain autoimmune diseases

  • Some cancers

• Low levels:

  • Usually not clinically significant

Risks

• Minimal, limited to risks of a blood draw (mild pain, bruising, or dizziness).