Evidence base on employment-related medical examinations is highly variable. The aim of this study is to build expert agreement on the appropriate medical and laboratory tests in major industries in Quezon City.

An initial scoping review of local, national, and international policies on employment-related diagnostic testing was done. The determination of industries at the selected study site (Quezon City) was accomplished through Pareto analysis. Interviews of key informants and representatives, and a consensus-building process through an expert panel were carried out by the Philippine College of Occupational Medicine (PCOM) Quezon City Chapter. Data gathered was used in the study and analyzed. An initial list of medical tests and diagnostics was drafted and the Modified RAND appropriateness method was used as the choice of mixed methods consensus-building process by an expert panel.

Regulations often vary significantly within settings and implementers, particularly the scope, content, and procedures for medical examinations of workers. History taking (including occupational history) and physical examination are the cornerstones of the screening process. CBC and chest x-ray were deemed appropriate screening laboratory tests for asymptomatic preemployment examination, while only chest x-rays were used during periodic examinations. Additional tests for medical surveillance should be based on job demands and specific exposure. For specific chemical exposure, standard references for medical requirements, like from Occupational Safety and Health Administration (OSHA), can be referred to.

A shift in how occupational health and safety measures are implemented is needed, particularly in the pre-employment and periodic examination practices, for more relevant screening while preventing unnecessary and low-yield testing and reducing costs for the employer and the employee. An occupational screening checklist/questionnaire based on the results of the study that includes appropriate clinical history-taking, review of systems (ROS), physical examination, and laboratories must be devised, which is to be followed by training in the proper conduction of these medical assessments.