The audiogram and its categorisation
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The audiogram and its categorisation book
An audiogram is a graph on which are plotted the results of the hearing test. In occupational health monitoring, only air conduction results are obtained so the graph is a relatively simple one to read. When diagnostic testing is undertaken, other results will also be plotted. The audiogram shows the frequencies tested along the horizontal axis and the hearing level in decibels along the vertical axis. The vertical axis runs the opposite way to most graphs, with the lowest numbers at the top.