Included with every panel
Baseline labs come free with any panel you build.
Other tests
Absolute Eosinophils test
The absolute number of eosinophils, white cells involved in allergic responses and parasite defense. Included with every panel.
At a glance
In about 5 days
Most results are ready in about 5 days. Some specialty markers can take up to 21 days.
Check before your draw
This marker has no preparation tag, but it can still need preparation. Contact us before your draw if you’re not sure.
Walk in at Quest
Your lab order arrives by email. Most Quest locations take walk-ins, so bring it with a photo ID.
What it measures
Counts eosinophils, white blood cells that help fight parasites and play a part in allergies and asthma.
Why it matters for women
Asthma is more common in adult women than in men, and symptoms can change with your period and during pregnancy. A high eosinophil count can be one sign of allergic asthma, allergies, eczema (an itchy skin condition) or a reaction to a medicine.
You might check it if…
- you live with asthma, hay fever or eczema
- you get a rash after starting a new medicine
- you’ve traveled abroad and have ongoing stomach problems
What your result may mean
High Absolute Eosinophils: what it may mean
A high absolute eosinophil count (eosinophilia) may suggest allergies, asthma, a parasitic infection or a reaction to a medicine. Eczema and hay fever can raise it too. Asthma can be more common in adult women than in men, and symptoms can change with your period or during pregnancy. Steroid medicines can lower this count and may hide a high result, and levels can shift with the time of day. You may notice wheezing, sneezing, itchy skin or a rash, or you may feel nothing at all.
Low Absolute Eosinophils: what it may mean
A low absolute eosinophil count can be normal, and many labs may not treat it as a problem. It can reflect stress on the body, such as a sudden illness or surgery, or the effect of steroid medicines like prednisone. Cortisol, the body's own stress hormone, can push eosinophils down, so the count may dip with high cortisol, as in Cushing syndrome, a condition that can be more common in women. Healthy people can have very few of these cells, and a single low number may not cause any symptoms.
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These notes provide context and do not diagnose a condition. Not yet available in NY, NJ, RI, HI, ND, SD or WV.