Which one of the following groups of signs would indicate that a casualty is suffering an anaphylactic reaction to latex?

The group of signs indicating that a casualty is suffering an anaphylactic reaction to latex includes facial swelling, rash, and gasping. These symptoms are classic manifestations of an allergic reaction, particularly anaphylaxis, which is a severe and potentially life-threatening response.

Facial swelling is a key indicator; it can occur due to the body's inflammatory response to allergens, leading to swelling of the lips, tongue, and face. A rash often accompanies an allergic reaction and can present as hives, which are raised, itchy welts on the skin. Gasping represents respiratory distress, a common complication during anaphylaxis as the airways become constricted or swollen, making it difficult to breathe.

Collectively, these symptoms reflect the rapid onset of anaphylaxis and suggest that immediate medical intervention is necessary. Recognizing these signs is crucial for dental nurses and other health professionals, as timely action can be the difference between life and death in severe allergic reactions.