What Is The Difference? 3 Part And 5 Part Hematology Analyzer

Hematology analyzers are also called cell counters as they are used to make a complete blood count (CBC) including red blood cell (RBC), white blood cell (WBC), hemoglobin, and platelet counts, as well as hematocrit levels and many other parameters. 

The most common discussion regarding cell counters is around 3-part differential cell counters and 5-part differential cell counters. The difference between a 3-part differential cell counter and 5-part cell counter is that – a 3-part cell-counter reports only 3 types of WBCs (neutrophils, lymphocytes, and monocytes) while a 5-part can differentiate all WBC types (neutrophils, lymphocytes, basophils, eosinophils, and monocytes).