Final answer:
The nurse's first action should be to activate the fire alarm. This initiates an emergency response and is critical in fire safety protocols. Subsequent steps include extinguishing the fire if safe to do so, rescuing individuals, and preventing the spread of fire.
Step-by-step explanation:
If a nurse observes smoke coming from the door of the nurses lounge, her first action should be to B. Activate the fire alarm. This action initiates a chain of responses to the emergency, alerts other staff and the fire department, and is crucial in the early stages of fire response. After activating the alarm, the nurse should follow the emergency protocol which may include tasks like extinguishing the fire if it is small and manageable, moving clients who are nearby to ensure their safety, and closing all open doors to prevent the spread of smoke and fire. However, these actions come after the critical step of alarm activation. It's also important to note that safety equipment and procedures, such as knowing the location of fire safety equipment and never leaving an open flame unattended, are essential in preventing and responding to fires.
In more general terms, when it comes to fire safety, firefighters are trained to rescue victims from burning buildings and administer first aid. They assess the situation and report conditions to their superiors using two-way radios, dress with fire-resistant clothing, and use breathing apparatuses when necessary.