Tetanus Prophylaxis for New Wounds
For a new wound, provide appropriate wound care with debridement, then administer tetanus toxoid if the patient cannot confirm a booster within the preceding 5 years, and add tetanus immune globulin (TIG) 250 units IM if the patient has an uncertain or incomplete primary vaccination series.
Wound Assessment and Initial Management
Appropriate wound care and debridement are critical to tetanus prevention 1. This is your first-line defense against tetanus, regardless of immunization status. All wounds should be evaluated to determine if they are tetanus-prone, which includes:
- Puncture or penetrating wounds
- Crushing injuries
- Wounds contaminated with dirt, soil, feces, or saliva
- Burns or avulsions with nonintact skin
- Any wound that creates an anaerobic environment 1
Tetanus Toxoid Administration
The decision to give tetanus toxoid depends on the wound type and time since last vaccination 1:
For clean, minor wounds:
- Give tetanus toxoid only if >10 years since last dose
For all other wounds (tetanus-prone):
- Give tetanus toxoid if >5 years since last dose
Age-Appropriate Vaccine Selection
Adults:
- Use Tdap (preferred) or Td if cannot confirm tetanus booster in preceding 5 years
- For adults >65 years, use Td 1
Children with uncertain vaccination history:
- DTaP if <7 years old
- Td if 7-10 years old
- Tdap if ≥11 years old 1
Tetanus Immune Globulin (TIG) Decision
TIG is indicated when the patient has an uncertain or incomplete primary vaccination series 1. The key distinction here is between patients who are simply overdue for a booster versus those who never completed their initial 3-dose series.
TIG dosing: 250 units IM for both adults and children 1
Critical administration detail: When giving both tetanus toxoid and TIG, use separate syringes at separate injection sites 1
Priority Groups for TIG (if supply limited)
If TIG supplies are constrained, prioritize:
- Persons >60 years old
- Immigrants from regions other than North America or Europe
- These groups are least likely to have adequate primary vaccination 1
Common Pitfalls to Avoid
Do not use antibiotics for tetanus prophylaxis - postexposure chemoprophylaxis with antimicrobials is not recommended 1
Do not delay wound care - surgical debridement takes precedence over immunization decisions 1
Unnecessary vaccination is unlikely to cause harm - when vaccination history is uncertain in the acute setting, err on the side of providing prophylaxis 1. The benefit of preventing tetanus far outweighs the minimal risk of an extra dose.
Follow-up Requirements
For patients with uncertain or incomplete primary vaccination who receive prophylaxis, ensure completion of the full 3-dose primary series during follow-up visits 1. The initial dose given during acute wound management counts as part of this series.