Which ED procedure is most appropriately performed to secure the airway when airway protection is required?

• A. Slit Lamp Exam
• B. Lumbar Puncture
• C. ET Intubation
• D. Central Line

Answer: (C)

Protecting and controlling the airway requires a definitive airway, which endotracheal intubation provides. Placing a tube into the trachea secures the airway, prevents obstruction, and allows controlled ventilation and oxygen delivery while protecting against aspiration in patients who cannot protect their own airway or need mechanical support. The other procedures are for different purposes: a slit lamp exam is an eye exam, a lumbar puncture collects CSF for testing, and a central line provides venous access for fluids or medications but does not secure the airway.