Which term describes a state of being excessively sensitive to a substance, often with allergic reactions?

Which term describes a state of being excessively sensitive to a substance, often with allergic reactions?

• A. Hypersensitivity
• B. Hyperglycemia
• C. Hypoglycemia
• D. Hypotension

Answer: (A)

Excessive sensitivity to a substance, often with allergic reactions, is called hypersensitivity. It means the immune system overreacts to something usually harmless—like pollen, certain foods, or pet dander—causing symptoms such as itching, sneezing, runny nose, hives, swelling, or wheezing. This is different from hyperglycemia (high blood sugar), hypoglycemia (low blood sugar), or hypotension (low blood pressure), which involve metabolic or circulatory problems rather than an exaggerated immune response.

Excessive sensitivity to a substance, often with allergic reactions, is called hypersensitivity. It means the immune system overreacts to something usually harmless—like pollen, certain foods, or pet dander—causing symptoms such as itching, sneezing, runny nose, hives, swelling, or wheezing. This is different from hyperglycemia (high blood sugar), hypoglycemia (low blood sugar), or hypotension (low blood pressure), which involve metabolic or circulatory problems rather than an exaggerated immune response.