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To understand the process of screening ,
it should be clear that screening is not usually diagnostic and in most cases is followed
by appropriate investigative procedures to confirm the results. The process of screening
starts by selecting the population, followed by performing a screening procedure to
classify individuals into either apparently healthy or affected. For the apparently
healthy individuals, regular screening at fixed intervals is recommended. The apparently
affected group is sent for further evaluation by a subsequent diagnostic procedure.
Appropriate intervention is started among those with confirmed diagnosis while individuals
who prove to be unaffected are asked to repeat the screening test at fixed intervals. |