Intravenous injections are delivered how?

Intravenous injections are delivered how?

• A. Into a person's vein, quickly reaching the bloodstream
• B. Subcutaneous tissue
• C. Muscle tissue
• D. Rectally

Answer: (A)

Intravenous means into a vein. When a drug is given this way, it goes directly into the bloodstream, so it acts almost immediately. This route provides very fast onset and essentially complete bioavailability because the medication bypasses the absorption barriers of skin and tissues. In contrast, subcutaneous or intramuscular injections must be absorbed from the tissue, which is slower and variable, and rectal administration involves the rectal mucosa rather than a vein. So the essence is placing the drug into a vein for immediate entry into the circulatory system.

Intravenous means into a vein. When a drug is given this way, it goes directly into the bloodstream, so it acts almost immediately. This route provides very fast onset and essentially complete bioavailability because the medication bypasses the absorption barriers of skin and tissues. In contrast, subcutaneous or intramuscular injections must be absorbed from the tissue, which is slower and variable, and rectal administration involves the rectal mucosa rather than a vein. So the essence is placing the drug into a vein for immediate entry into the circulatory system.