A child with laryngotracheobronchitis (croup) is placed in a cool mist tent. The parent becomes concerned because the child is frightened, consistently crying, and trying to climb out of the tent. Which is the most appropriate nursing action?

Tell the parent that the child must stay in the tent.

Call the pediatrician and obtain a prescription for a mild sedative.

Let the parent hold the child and direct the cool mist over the child's face.

Place a toy in the tent to make the child feel more comfortable.