true burn keto Where workers are exposed to a degree of residual risk of exposure and health surveillance is required by law the OHA will be involved in undertaking routine health surveillance procedures, periodic health assessment and in evaluating the results from such screening processes. The nurse will need a high degree of clinical skill when undertaking health surveillance and maintain a high degree of alertness to any abnormal findings. Early referral to an occupational health physician or other appropriate specialist will be the responsibility of the occupational health nurse where any abnormality is detected. The nurse will be involved in supporting the worker throughout any further examination or investigation, and may help to monitor their health on return to work. Once alerted to the possibility of an adverse health effect the occupational health nurse is in a good position to co-ordinate efforts to re-evaluate working practices in order to help protect others who may be similarly affected.