What is a common life-threatening allergic reaction sign?

What is a common life-threatening allergic reaction sign?

• A. Anaphylaxis: rapid swelling of airways, wheezing, tachycardia, hypotension
• B. Mild fever and rash
• C. Cough with sneeze
• D. Elevated blood sugar

Answer: (A)

Anaphylaxis is a life-threatening allergic reaction. It happens when exposure to an allergen triggers widespread release of inflammatory mediators, causing rapid airway swelling and bronchospasm. The result can be swelling that blocks the airway and wheezing from constricted airways, along with cardiovascular effects like a rapid heart rate and falling blood pressure. Because these changes can progress quickly to respiratory failure or shock, this combination of signs is the hallmark of a medical emergency that requires immediate treatment with epinephrine and urgent medical care. Other listed signs do not fit this dangerous pattern: mild fever with rash can occur with infections or milder allergic reactions, a cough with sneeze is more typical of viral or allergic upper-respiratory symptoms, and elevated blood sugar is unrelated to anaphylaxis.

Anaphylaxis is a life-threatening allergic reaction. It happens when exposure to an allergen triggers widespread release of inflammatory mediators, causing rapid airway swelling and bronchospasm. The result can be swelling that blocks the airway and wheezing from constricted airways, along with cardiovascular effects like a rapid heart rate and falling blood pressure. Because these changes can progress quickly to respiratory failure or shock, this combination of signs is the hallmark of a medical emergency that requires immediate treatment with epinephrine and urgent medical care.

Other listed signs do not fit this dangerous pattern: mild fever with rash can occur with infections or milder allergic reactions, a cough with sneeze is more typical of viral or allergic upper-respiratory symptoms, and elevated blood sugar is unrelated to anaphylaxis.