Complete Blood Count (CBC)Reported in ×10³/µLEosinophils (absolute)
The actual number of eosinophils. These cells take part in allergy, asthma, and defense against parasites.
What it measures
Eosinophils are filled with granules that are useful against parasites and overly active in allergy. The absolute count is the figure used to call a result eosinophilia or eosinopenia. The percent can look high only because other cells fell.
Why it is on the panel
Unexplained itching, asthma, nasal allergies, and some rashes make more sense when this count is high. On a screening panel it also catches a rise you did not know was there.
How to read it
Use the absolute count as the decision number. Then look at the clinical picture: seasonal allergies and asthma are the common explanations, and they are already familiar to many people who see a mild elevation.
When it runs higher
Allergies, asthma, eczema, drug reactions, and parasitic infection are the usual reasons. Less often, autoimmune disease or an eosinophilic disorder is responsible. A mildly high count that matches known allergies is a frequent, unsurprising result.
When it runs lower
A low count is common during steroid treatment and the acute stress of illness. It rarely needs its own workup.
How to use this page
This page explains what the measurement is for. It is educational. Your Healiam report includes the reference interval for your age and sex, and a clinician reads that result with your history, medicines, and the rest of the panel. Talk with a clinician before changing diet, supplements, or treatment because of a number on a report.
Eos (abs)
Eos (abs) is part of the full panel.
No referral or insurance required.
One preventive draw covers this measurement and the rest of the Healiam panel. CLIA-certified results come back in days.