Which statement best describes intravenous injections?

• A. They are injected into the muscle.
• B. They are typically used for medications that can cause severe muscle damage.
• C. They are injected under the skin.
• D. They are administered orally.

Answer: (B)

Intravenous injections deliver medication directly into a vein, providing rapid, whole-body distribution and avoiding contact with muscle or subcutaneous tissue. This route is particularly useful when a drug could irritate or damage muscle tissue if given by other routes. By delivering the medicine straight into the bloodstream, the risk of local muscle injury is minimized, making it a common choice for medications that can cause severe muscle damage if injected intramuscularly or into surrounding tissues. The other options describe routes into muscle, under the skin, or by mouth, which are not how intravenous administration works.