Which vessel carries blood from the lungs and returns it to the heart?

Why are uncuffed endotracheal tubes sometimes used on infants and children less than eight years old?

What will be an ideal response?

While enroute to an emergency incident, dispatch informs you that callers are reporting a tank leaking an unknown liquid. Dispatch also informs you that witnesses report seeing a marking of "Spec. 51" on the side of the tank. Which of the following types of containers would you expect to find on arrival at the incident?

a. Cargo tank b. Rail car c. Intermodal portable tank d. Radioactive container