AP BIOLOGY

Detailed explanation-1: -Monocytes: 2% to 8% Eosinophils: 1% to 4%

Detailed explanation-2: -In healthy individuals, eosinophils make up less than 5% of white blood cells circulating throughout the body. 2 The body increases eosinophil production as an immune response to certain threats, such as allergies (e.g., food, environmental, medications); asthma; and parasitic, bacterial, and viral infections. 3.

Detailed explanation-3: -Absolute eosinophil counts exceeding 450 to 550 cells/µL, depending on laboratory standards, are reported as elevated. Percentages generally above 5% of the differential are regarded as elevated in most institutions, although the absolute count should be calculated before a determination of eosinophilia is made.

Detailed explanation-4: -Eosinophils. Eosinophils, named so because they histologically stain with eosin, are granular leukocytes from the myeloid cell line within the bone marrow. They make up 1-3% of circulating leukocytes.