In cases of tetanus risk with uncertain vaccination status, which statement best describes prophylaxis?

• A. Administer tetanus toxoid-containing vaccine only.
• B. Administer tetanus toxoid-containing vaccine and consider tetanus immunoglobulin.
• C. Administer tetanus immunoglobulin only.
• D. No tetanus prophylaxis is needed.

Answer: (B)

When tetanus risk exists and vaccination status is uncertain, you need both immediate protection and long-term immunity. Tetanus toxoid–containing vaccine provides active immunity, but it takes time for the body to develop antibodies after vaccination. Tetanus immunoglobulin offers immediate, short-term protection by neutralizing any toxin present right now. So, starting the vaccine series while also providing immunoglobulin addresses the immediate threat and builds lasting protection. Relying on the vaccine alone misses the critical window of protection, and giving immunoglobulin alone won’t establish enduring immunity. No prophylaxis would be inappropriate in a tetanus-prone situation with uncertain status. The approach to administer the vaccine and consider immunoglobulin aligns with providing both immediate and future protection, tailored to wound severity and vaccination history.