You Have Been Called to a Kindergarten Class for a 5-Year-Old

You have been called to a kindergarten class for a 5-year-old boy who is allergic to peanuts. He ate some in the form of a birthday treat brought to school by a classmate who is celebrating a birthday. From the door of the classroom, you note the patient to have swollen lips and hives to his face and arms. As you begin the primary assessment, which one of the following should you do first?

A) Contact the patient's parents for permission to treat him.
B) Inspect the inside of his mouth.
C) Determine how many peanuts he ingested.
D) Check breath sounds for wheezing and assess the vital signs.