Different laboratories may report slightly different reference ranges. The normal reference range is typically provided and printed with the results of the complete blood count for accurate interpretation. ![]() The normal values may differ slightly based on the reference range and the machine used in the laboratory and, therefore, the results may be slightly different from one laboratory to the next. The complete blood count values are usually reported based on the number of cells in a specific volume of blood. What Are Values for Components of Complete Blood Count? This is called the manual differential analysis. This method is still widely used when results of a complete blood count need further review to confirm certain abnormal values, or a doctor wants to see how the blood cells look (for example, if any abnormal features are present which would not be reported by an automated complete blood count). This is usually done by a trained laboratory technologist or a doctor. The conventional method to analyze these data is to obtain a small sample of the collected blood and place it on a glass slide for visual review under a microscope. This is called an automated cell count and differential. A small sample of the blood drawn from a person is fed into the machine and within a few minutes, the values of the components of the complete blood count are displayed and printed for review. The complete blood count analysis is routinely and reliably done by automated machines in most laboratories. The blood sample drawn for a complete blood count is analyzed in a medical laboratory. SLIDESHOW Health Screening Tests Every Woman Needs See Slideshow The different types of WBCs that have specific functions that are routinely reported in a complete blood count are neutrophils, lymphocytes, basophils, eosinophils, and monocytes. ![]() The white blood cell (WBC) differential refers to the number of the different types of white blood cells seen in the blood. The other components represent additional information about these cells including their size, color, function, and maturity. The main components are the blood cells such as white blood cells, red blood cells, and platelets. Mean corpuscular hemoglobin concentration (MCHC).Red blood cell count (RBC or erythrocyte count). ![]()
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