Which agent is used to neutralize circulating tetanus toxin in generalized tetanus?

Which agent is used to neutralize circulating tetanus toxin in generalized tetanus?

• A. Tetanus immune globulin
• B. Midazolam
• C. Metronidazole
• D. Doxycycline

Answer: (A)

Neutralizing circulating tetanus toxin is achieved with tetanus immune globulin, which provides antibodies that bind free toxin in the bloodstream. This stops additional toxin from entering nerve terminals and worsening the disease, but it cannot reverse damage that toxin has already caused once it has entered neurons. Therefore, the immune globulin is the agent that directly neutralizes circulating toxin. In managing generalized tetanus, antibiotics such as metronidazole (often preferred) or doxycycline are used to eradicate Clostridium tetani and halt toxin production, along with wound care and supportive measures. Medications like midazolam help control muscle spasms and agitation but do not neutralize toxin.

Neutralizing circulating tetanus toxin is achieved with tetanus immune globulin, which provides antibodies that bind free toxin in the bloodstream. This stops additional toxin from entering nerve terminals and worsening the disease, but it cannot reverse damage that toxin has already caused once it has entered neurons. Therefore, the immune globulin is the agent that directly neutralizes circulating toxin.

In managing generalized tetanus, antibiotics such as metronidazole (often preferred) or doxycycline are used to eradicate Clostridium tetani and halt toxin production, along with wound care and supportive measures. Medications like midazolam help control muscle spasms and agitation but do not neutralize toxin.