Final answer:
The severe respiratory distress and signs of anaphylaxis must be treated promptly with epinephrine (EpiPen). Epinephrine constricts blood vessels, improves breathing, and reduces throat swelling. Known severe allergy patients should carry epinephrine autoinjectors.
Step-by-step explanation:
The severe respiratory distress and signs of anaphylaxis must be treated promptly with epinephrine (commonly known as EpiPen). 5Epinephrine works by constricting blood vessels, increasing blood pressure, relaxing smooth muscles in the lungs to improve breathing, modulating heart rate, and reducing swelling that may block the airways.
Patients with known severe allergies are encouraged to carry epinephrine autoinjectors in case of an anaphylactic response.