Which item is not required to be accessible by an employer?

The correct response, which identifies a portable defibrillator as the item not required to be accessible by an employer, is grounded in the specific requirements outlined in workplace safety and health regulations. While having accessible medical supplies and protocols is critical for ensuring employee safety and quick response in case of an emergency, not all items carry the same level of mandated necessity.

A first aid kit, phone numbers for medical assistance, and a chemical station for flushing eyes are generally expected as part of basic workplace safety compliance. These resources are essential for handling common injuries and emergencies that may arise in many work environments. In contrast, while a portable defibrillator is a valuable tool for cardiac emergencies, it is not mandated in all workplaces unless there is a specific assessment of risk that indicates a higher likelihood of such incidents.

As a result, the requirement for equipment like a portable defibrillator can vary based on the industry, the size of the workforce, and other risk factors. Hence, it doesn't fall under the universal necessities that employers must provide.