Manufacturing Skill Standards Council (MSSC) Safety Assessment Practice Test

Tetanus is a possible result from which type of injury?

1. Puncture wounds from a nail

2. Broken bones

3. Second hand smoke

4. Sprains

The correct answer is: Puncture wounds from a nail

Tetanus is a disease caused by a toxin produced by the bacterium Clostridium tetani, which is commonly found in soil, dust, and animal feces. Puncture wounds, particularly those caused by nails, create an ideal environment for the bacteria to enter the body and produce the toxin. Because these wounds can close over quickly, they can trap the bacteria inside, increasing the risk of developing tetanus if the person has not been vaccinated or if their vaccination is not up to date. In contrast, broken bones do not specifically relate to tetanus as they do not involve puncture entry into the body where the bacterium can thrive. Secondhand smoke does not cause tetanus; it is a health risk primarily related to respiratory issues rather than bacterial infections. Similarly, sprains involve stretching or tearing ligaments without any direct entry point for bacteria like Clostridium tetani. Thus, the risk associated with puncture wounds distinctly sets them apart as a potential cause of tetanus, making that answer the most appropriate choice.