Handbook dedication of thrombocyte density from microscopic examination of stained blood movies includes systematically counting these cells inside an outlined space of the slide after which extrapolating this depend to a bigger quantity. For example, a hemocytometer, although extra generally used for leukocyte counts, can be tailored for this goal. Alternatively, a specified space inside a typical blood movie can be utilized, although this methodology usually depends on correlating the noticed platelet density with a concurrent automated depend. Microscopic analysis offers a qualitative evaluation of platelet morphology, which may reveal clues about underlying hematological problems.
This method, whereas doubtlessly much less exact than automated strategies, stays invaluable in resource-limited settings, for instructional functions in hematology coaching, and as a validation software for automated analyzers. Traditionally, earlier than the appearance of automated cell counters, microscopic examination was the usual methodology for quantifying platelets. Sustaining proficiency on this guide talent permits for essential analysis of automated outcomes and offers a backup methodology when automated methods are unavailable or malfunctioning. Moreover, morphological evaluation achievable by way of this methodology will be essential for diagnosing particular platelet problems that is probably not detectable by automated counts alone.
