Which term describes administration by injection?

Which term describes administration by injection?

• A. Inhalation
• B. Oral
• C. Parenteral
• D. Topical

Answer: (C)

Administration by injection falls under parenteral delivery, a route that bypasses the gastrointestinal tract and delivers drugs directly into tissues or the bloodstream. This broad term includes intramuscular, subcutaneous, and intravenous injections, as well as infusion. In contrast, inhalation delivers drugs via the respiratory tract, oral administration involves swallowing and absorption through the gut, and topical application refers to applying drugs to the skin or mucous membranes. Therefore, the best term for administration by injection is parenteral. For example, vaccines or insulin given by injection illustrate this route.

Administration by injection falls under parenteral delivery, a route that bypasses the gastrointestinal tract and delivers drugs directly into tissues or the bloodstream. This broad term includes intramuscular, subcutaneous, and intravenous injections, as well as infusion. In contrast, inhalation delivers drugs via the respiratory tract, oral administration involves swallowing and absorption through the gut, and topical application refers to applying drugs to the skin or mucous membranes. Therefore, the best term for administration by injection is parenteral. For example, vaccines or insulin given by injection illustrate this route.