Tetanus Flashcards
Exotoxins of Clostridium tetani
Tetanospasmin - causative agent of tetanus
Tetanolysin - no role in pathogenesis
Maternal tetanus when occurred
During pregnancy or within 6 weeks after delivery
Minimum lethal human dose of tetanus exotoxin
2.5ng/kg
Muscles first affected in generalized tetanus
Muscles of the face and jaw
Most common initial symptoms of tetanus
Trismus, muscle pain and stiffness, back pain, dysphagia
Most common cause of death in tetanus
Respiratory muscle spasm leading to failure
Diagnosis of tetanus
Clinical
Treatment of tetanus
Clean wound, give metronidazole IV or per rectum + tetanus immune globulin
Alternative antibiotic for tetanus which can exacerbate spasms
Penicillin