Final answer:
Before administering any vaccines, it is crucial to inquire about a history of anaphylactic reactions to both neomycin and eggs. Anaphylaxis is treated initially with an epinephrine injection to counteract the drop in blood pressure.
Step-by-step explanation:
Before administering any vaccines, it is crucial to inquire about a history of anaphylactic reactions to both neomycin and eggs. Some individuals develop severe allergies that may cause anaphylactic shock, which can be potentially fatal if untreated. Anaphylaxis is treated initially with an epinephrine injection to counteract the drop in blood pressure.