Final answer:
The three types of MSE's (Medical Surveillance Examinations) are periodic examinations, return-to-work examinations, and exit examinations.
Step-by-step explanation:
The three types of MSE's (Medical Surveillance Examinations) are:
1. Periodic Examinations: These are regular check-ups conducted at specific intervals to monitor the health status of individuals involved in hazardous or risky occupations, such as firefighters or construction workers.
2. Return-to-Work Examinations: These examinations are performed when an employee is ready to return to work after a medical leave or injury to ensure that they are fit to resume their duties.
3. Exit Examinations: These examinations are carried out when an individual leaves a job or occupation that involves occupational hazards, to assess their health and establish a baseline for future comparison.