You administer a flu shot. Which statement by the patient indicates a potential allergic reaction?

The statement "My throat is itching." indicates a potential allergic reaction to the flu shot. Allergic reactions can manifest through various symptoms, including respiratory issues, skin reactions, and swelling in areas such as the throat. When a patient reports itchiness in their throat, it may suggest that their body is currently responding to the vaccine as if it were a harmful substance, triggering an immune response that could lead to more serious reactions like swelling of the airway or anaphylaxis if not addressed promptly.

In contrast, the other statements reflect common, non-allergic side effects that can occur after receiving a vaccination. A headache, fatigue, and soreness at the injection site are all typical and often mild symptoms that do not indicate an allergic response. Sore arms and feelings of tiredness are frequently reported and are generally regarded as normal reactions, while headaches can occur due to various factors unrelated to allergies. Recognizing these differences is crucial for monitoring patient responses and ensuring patient safety after vaccinations.