What is the priority nursing action regarding exposure to radioactive dust and smoke from a radiologic dispersal device?

The priority nursing action regarding exposure to radioactive dust and smoke from a radiologic dispersal device is to cover the nose. This action helps to minimize inhalation of radioactive particles, which can be particularly harmful to the respiratory system. By covering the nose and mouth, individuals can reduce their exposure to airborne contaminants, thereby lowering the risk of internal radiation or toxicity from inhaling radioactive dust or smoke.

In situations involving a radiologic dispersal device, prompt action to limit exposure is crucial. Covering the nose provides an immediate and practical measure to protect oneself until more comprehensive decontamination or evacuation measures can be implemented. The focus on respiratory protection emphasizes the importance of preventing the inhalation of harmful substances in the early stages of a radiological event.

While evacuation, administering oxygen, and starting IV fluids may also be relevant actions in a broader context of radiological emergencies, the immediate need to protect against inhaled radioactive materials takes precedence to ensure safety and reduce the potential for harm.