EQUINE | CPD Article
CPD
Equine Tetanus
AC/2058/19
1. C. tetani is a:
4. What is the incubation period for the
development of tetanus?
a. gram negative, non- spore forming bacillis that is a
strict anaerobe
b. gram positive, spore forming bacillis that is a strict
aerobe
c. gram positive, spore forming bacillis that is a strict
anaerobe
d. gram negative, spore forming bacillis that is a strict
anaerobe
e. gram negative, spore forming bacillis that is a strict
aerobe
a. There is no set incubation period as clinical signs
are dependent on the amount of tetanospasmin
toxin produced
b. 9 days
c. 1- 4 weeks
d. 1-3 weeks
e. None of the above
2. C.tetani gains access to the body via: 5. If a horse has a history of a wound within the last
14 days, which of the following clinical signs will
support a presumptive diagnosis of tetanus:
a. Gelding wounds and other surgical sites
b. Deep soft tissue wounds
c. Injection sites
d. Hoof abscess
e. All of the above a. Trembling, sweating and pyrexia
b. Elevated tail with impaction on rectal examination
c. Stiff and mild lameness on all four legs
d. ‘Sawhorse’ stance with horse unable to move
e. Ptyalism
3. Which wound factors will promote the formation
of tetanospasmin? 6. The diagnosis of tetanus is based on:
a. Low oxygen tension
b. Concurrent bacterial infection.
c. Foreign bodies and necrotic tissue
d. Tetanolysin
e. All of the above
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a. Gram staining smears of the infected wound
discharge
b. Ultrasonography of the wound site to confirm
anaerobic infection
c. History of a recent wound, clinical signs and poor
vaccination status
d. Bacterial isolation from necrotic tissues
e. Haematology and CSF analysis
• Equine Health Update •