Antibiotic prophylaxis for dog bites is particularly indicated for bites involving which area?

Antibiotic prophylaxis for dog bites is particularly indicated for bites involving which area?

• A. Foot involvement
• B. Facial bites
• C. Hand involvement
• D. Scalp bites

Answer: (C)

Infections from dog bites are most concerning when the wound involves the hand because the hand’s anatomy creates a high-risk environment for rapid spread of infection and serious complications. The hand has many closed spaces (tendons, sheaths, joints) and relatively tight tissue planes, so once bacteria enter, infection can quickly progress to tenosynovitis, septic arthritis, osteomyelitis, or severe cellulitis. Preserving hand function is a priority, so giving antibiotics prophylactically in these bites helps prevent these outcomes. Dogs commonly harbor Pasteurella species in their mouths, along with Staphylococcus and Streptococcus species and anaerobes that can complicate hand wounds. Amoxicillin-clavulanate is the typical prophylactic choice because it covers Pasteurella and the usual skin and oral flora. If penicillin allergy is present, an alternative regimen should cover Pasteurella and anaerobes as well. This is why hand bites are a standout indication for antibiotic prophylaxis compared with bites to other areas.

Infections from dog bites are most concerning when the wound involves the hand because the hand’s anatomy creates a high-risk environment for rapid spread of infection and serious complications. The hand has many closed spaces (tendons, sheaths, joints) and relatively tight tissue planes, so once bacteria enter, infection can quickly progress to tenosynovitis, septic arthritis, osteomyelitis, or severe cellulitis. Preserving hand function is a priority, so giving antibiotics prophylactically in these bites helps prevent these outcomes.

Dogs commonly harbor Pasteurella species in their mouths, along with Staphylococcus and Streptococcus species and anaerobes that can complicate hand wounds. Amoxicillin-clavulanate is the typical prophylactic choice because it covers Pasteurella and the usual skin and oral flora. If penicillin allergy is present, an alternative regimen should cover Pasteurella and anaerobes as well. This is why hand bites are a standout indication for antibiotic prophylaxis compared with bites to other areas.