3027651

3027651 - Basophils [#/volume] in Blood by Manual count

Basophils are granular white blood cells characterized by a pale-staining nucleus with 2 to 3 lobes and a cytoplasm containing coarse, dark-staining granules of variable size. They represent 0.5-1% of circulating leukocytes and they are stained by basic dyes. When activated, they release histamine, leukotrienes and a number of cytokines. 1

8848

In the OMOP vocabulary 8848 is a Standard Concept that represents the unit thousand per microliter (1000/uL)

Plausible Low Value

0

Plausible High Value

0.4

Rationale

Basophils account for less than three percent of your white blood cells. You should have 0 to 300 basophils per microliter of blood (or 0 to .3 1000/uL). 2 This information combined with a data-driven approach to empirically establish possible low and high values, leads us to choose 0 and .4.