Differences in these cells and their characteristics are as common as the differences in the color of our eyes or shapes of our noses. And what’s more, very few people have a ‘normal’ CBC. There are many types of blood cells, as well as ways to measure and analyze those cells. And if you looked at your results, it probably looked like a confusing report of abbreviations, numbers, and percentages.īlood is a lot more complicated than meets the eye. If you have recently been to the emergency department (ED), there is a good chance your blood counts were tested. A complete blood count (CBC) is a common laboratory test to include as part of a basic medical evaluation.