Gladys, a server, brings a plate of food to a customer. A few minutes later, Gladys returns to the table to check on her customer. She notices that the customer’s lips appear slightly swolle

Gladys, a server, brings a plate of food to a customer. A few minutes later, Gladys returns to the table to check on her customer. She notices that the customer’s lips appear slightly swollen. Gladys asks the customer if he is feeling alright, and he responds, “Yes.” She leaves and then later returns to the table to refill the customer’s water glass. The customer says he is having difficulty breathing. What should Gladys do?