Which route bypasses the digestive system by delivering medication directly into the bloodstream?

• A. Intramuscular.
• B. Intradenal.
• C. Intravenous.
• D. Oral.

Answer: (C)

Delivering medication directly into the bloodstream is most effectively done through intravenous administration. When a drug is given this way, it goes straight into a vein and into the circulatory system immediately, providing rapid onset and precise control of the dose. This method completely bypasses the digestive tract and avoids first-pass metabolism by the liver, which can alter or reduce the amount of drug before it reaches systemic circulation. In contrast, an oral dose must travel through the stomach and intestines for absorption, where factors like pH, food, and transit time can affect how much of the drug actually gets into the bloodstream and how quickly. An intramuscular route does reach the bloodstream, but it must first be absorbed from muscle tissue, not delivered directly into the blood. The essential idea is direct entry into the bloodstream without passing through the digestive system.