A nurse in a clinic is speaking with a parent of a 1-year-old toddler who received her scheduled immunizations 1 hr ago. Which of the following findings reported by the parent is the nurse's priority?

A. Swelling around the eyelids and mouth can indicate an allergic reaction, which could be a sign of anaphylaxis, a life-threatening condition. This requires immediate attention and intervention. B. Crying when the injection site is touched is a common and expected response after immunization and does not suggest a serious issue. C. A slight decrease in appetite after immunizations can be common, but it is not typically a cause for concern unless it is persistent or accompanied by other signs of illness. D. A mild fever after immunizations is common and usually not alarming. A temperature of 100.7°F is not high enough to be a priority concern unless it is persistent or higher.