What should you have regardless of the ET tube size you plan to use?

Having one endotracheal (ET) tube smaller and one larger than the size you plan to use is critical for several reasons. First and foremost, variations in anatomy or unexpected patient conditions may necessitate a different tube size for effective intubation. A smaller tube might be required for a pediatric patient or someone with a narrowed airway, while a larger tube could be needed for an adult with significant swelling or trauma in the airway.

Preparation is key in emergency medical situations. Having both a smaller and a larger tube ensures that you can adapt swiftly if your initial choice doesn't work due to anatomical differences, airway obstructions, or patient-specific factors. This practice aligns with the principles of flexibility and readiness in patient care. Additionally, it minimizes the time spent on switching equipment during a critical procedure, enhancing the chances of success in securing the airway effectively and efficiently.