Answer:
To hydrate the respiratory system with a saline solution.
Step-by-step explanation:
This child has a high pulse could it be due to the respiratory distress that can be obstructed, so if the nose of the throat are with some mucus, the saline solution will help to open this ventilation areas.
If there are some oxygen tanks available, also can help to recover the level of oxygen in blood.
Hope this info is useful.