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