Absolute Eosinophil Count
- Sample Type
- Standard
- Fasting
- No
- Unit
- x10^9/L
The Absolute Eosinophil Count (AEC) calculates the actual number of eosinophils per unit of blood (rather than just the percentage). Eosinophils are specialized white blood cells involved in the body's response to parasitic infections, allergic reactions, and chronic inflammation. In a Differential Count, AEC is critical because a high percentage (eosinophilia) might be misleading if the total WBC count is low; the absolute count provides the definitive clinical picture.
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Enter your lab result to see where you stand compared to the standard reference range.
Why Context Matters
AEC exhibits significant diurnal variation (counts are usually higher at night and lower in the morning). Additionally, recent corticosteroid use can acutely suppress eosinophil counts, potentially masking underlying eosinophilia.
Lab ranges are statistical averages, not biological laws. "Normal" for a 20-year-old male isn't normal for a 60-year-old female.
Clinical References
Source-of-truth databases and clinical guidelines for Absolute Eosinophil Count:
Official Sources
- Eosinophilia - Mayo ClinicMayo Clinic
Research & Guidelines
Related Indicators
Medically Reviewed by Dr. Binoy Babu, MBBS
Board Certified Doctor • 10+ Years Clinical Experience
Dr. Babu is a practicing physician dedicated to empowering patients with clear, actionable medical information. He founded 2opi to bridge the gap between complex lab reports and patient understanding, ensuring everyone has access to a reliable second opinion.
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