What is the most effective measure in the hierarchy of controls?

The most effective measure in the hierarchy of controls is elimination. This approach involves completely removing the hazard from the workplace or situation, which directly eliminates the risk of exposure or injury. By eradicating the source of danger, it addresses the problem at its root, providing the highest level of protection for individuals.

In the context of caregiving, for instance, if a particular task or environment presents a significant hazard, finding ways to completely remove that task or change the environment would be the optimal solution. This could mean redesigning workflows or utilizing different tools that do not pose the same risks.

Other measures in the hierarchy, such as administrative controls, substitution, and personal protective equipment (PPE), aim to mitigate risk rather than eliminate it entirely. While important, these options involve changing practices or adding protective measures rather than removing the hazard itself, therefore offering lower levels of effectiveness when it comes to risk reduction.