What are the results categories used in audiometry ?
In order to ensure a simple and verifiable system for analysing the results of the hearing tests the Health and Safety Executive (HSE) have specified a 4-part categoisation system which is used by HSMC. To summarise these into plain English: • Category 1 – good and no problems with hearing • Category 2 – just about OK but slightly lower than we would like • Category 3 – a loss which is in excess of the normal standard for their age • Category 4 – a rapid loss identified by comparing two results There is also a classification called ‘unilateral’ which is where one ear is performing at a lower level than the other (ears are generally in balance so one weaker one may be a sign of a problem). All results take into account the employee’s age – as we get older hearing deteriorates naturally therefore we take this into account when analysing the results. How long does each audiometric test take? Each test takes approximately 15 minutes from start to finish. How many hearing tests can you do i
