What are the signs of an allergic reaction that nurses must monitor for?

Monitoring for an allergic reaction is critical for nurses, and the presence of a rash, itching, and difficulty breathing are hallmark signs of such a reaction.

A rash can take various forms, such as hives, which are raised, itchy welts that can appear suddenly on the skin. This is often one of the first visible signs of an allergic reaction and indicates that the immune system is responding to a perceived threat.

Itching, or pruritus, frequently accompanies skin rashes in allergic reactions and can be intensely uncomfortable for the patient. It is caused by the release of histamines in the body during an allergic response.

Difficulty breathing is a more severe symptom that indicates the potential for anaphylaxis, a life-threatening allergic reaction. This symptom may involve wheezing, shortness of breath, or a feeling of tightness in the chest, prompting immediate medical response.

In contrast, other options presented include symptoms that may not be directly related to allergic reactions or are less indicative of such conditions. For example, fever and cough are more commonly associated with infections, while swelling of the limbs and headaches may not necessarily indicate an allergic response. Nausea and dizziness can arise from numerous conditions, including medication side effects or gastrointestinal issues, not specifically tying