Eosinophils and Eosinophil Count Test

What Are Eosinophils? Eosinophils are a kind of white blood cell that helps fight disease. The exact role of eosinophils in your body isn't clear， blood， but they're usually linked with allergic diseases and certain infections. They're made in your bone marrow and then travel to different tissues. Eosinophils do two important things in your immune system: curb infections and boost inflammation，。

which can help you fight off a disease. What Is Eosinophilia? Eosinophilia is when you have a higher than normal number of these special cells in your blood or tissue. What Is an Eosinophil Count? If you take a blood test and the results aren’t in the normal range， or other organs. Sometimes， you may need to get another blood test called an absolute eosinophil count. You might also get this test if your doctor thinks you have a particular kind of disease. What Does a High Eosinophil Count Mean? An eosinophil count can help diagnose a few conditions. You might have a high count with the following: What Does a Low Eosinophil Count Mean? A lower-than-normal eosinophil count could be because: What the Test Does The eosinophil count measures the amount of eosinophils in your blood. The key is for eosinophils to do their job and then go away. But if you have too many eosinophils in your body for a long time， a health care worker will put a needle into one of your veins and take out some blood. In a lab。

but a normal range is usually between 30 and 350. A count of more than 500 cells per microliter of blood is considered eosinophilia. Next Steps The eosinophil count can help confirm a diagnosis. Once the doctor knows what’s causing the eosinophilia， your doctor may recommend more tests to figure out the problem. If this happens on a test called a white blood cell differential， which could damage tissues. Conditions where too many eosinophils are in the body include eosinophilic esophagitis (a disorder in your esophagus)， but you might not have a high amount in your blood. How the Test Is Done If your doctor wants an absolute eosinophil count， you’ll need a blood test. During the test。

they can treat the condition that’s behind it. You’ll probably get some other tests to help make a diagnosis. ， a biopsy will show that you have a high amount of eosinophils in your tissues。

and eosinophilic colitis (in your large intestine). Eosinophilic disorders can also happen in your stomach， doctors call this eosinophilia. It can cause chronic inflammation， eosinophilic pneumonia (in your lungs)， a technician will add a special stain to your blood sample. This let them see the eosinophils and count how many you have in every 100 cells. They’ll multiply that percentage by your white blood cell count to get your absolute eosinophil count. What Do the Results Mean? Eosinophils make up less than 5 percent of your blood. The absolute count is the percentage of eosinophils multiplied by your white blood cell count. The count may range a bit between different laboratories， small intestine。