What is the first step in nursing interventions when dealing with chemical agents and radiation?

When dealing with chemical agents and radiation, the initial step in nursing interventions is to determine the type and amount of radiation or chemical exposure. This assessment is crucial because it informs the responder about the specific risks and characteristics associated with the exposure. Understanding the type of chemical or radiation allows healthcare professionals to implement the most effective and appropriate safety measures, treatment protocols, and decontamination techniques.

Knowing the amount and type also aids in assessing the level of exposure that individuals may have endured, which is essential for determining the urgent care or intervention required. This step prioritizes patient safety and the safety of healthcare workers, ensuring that the care provided is both relevant and tailored to the specific situation.

The other options, such as wearing appropriate protective equipment, placing a sign on the door, or wearing a monitoring badge, are important actions that follow the initial assessment. However, they rely on the preliminary information gained from understanding the type and amount of exposure. Therefore, determining the nature of the situation is foundational to all subsequent actions taken in response to chemical and radiation exposure.