Knowledge of a person's occupation and work life is useful in determining:
1. any exposures to agents that might affect drug metabolism (e.g insecticides) and other occupational risks.
2. how the work environment or routines may affect the patient's ability or willingness to take medications during work time. (e.g., lack of access to a refrigerator for storing a medication, a busy work schedule that may interfere with remembering to take medications, fear that the co-workers or employer may learn about a patient's medical problems from seeing them take medications)
If a patient is retired, further querstions should be asked about past employment and any current employment or volunteer activities or hobbies.
In this patient, his potential exposure to insecticides should be explored further.