During speech pathology session 2/01/20xx with client Kim Gregory the z-vibe oral motor tool was used with the mini tip and the tongue tip attachment. After the completion of the session, Sandra (health assistant) realised that the z vibe attachments had not been sterilised since the previous day with the client Mason Tully. There has been no record of who was assisting the client Mason Tully as there were a lot of workers rotating during his session. In addition, the used therapy aids had not been removed from the consultation room after use the previous day and had been returned to the “sterile” storage container. Therefore, it is possible that the client, Kim Gregory, could have been exposed to infectious agents that may have been present on the z-vibe attachments. Parties involved and their designation List all the errors in scenario Risks for parties involved in scenario What are the hierarchy of controls that you would apply at the workplace to enable prevention and minimising the risk that has been identified?