Download Final Exam Review

Final Exam Review
Animal Technology II
What is the tough, clear
covering over the iris and the
pupil that helps protect the
eye?
 Cornea
Define Blepharospasm
 Holding eyes shut tightly
Define epiphora
 Excessive tearing
What is the first thing you need
to do early in the eye exam
before anything is placed into
the eyes?
 Culture
Define PLR and explain the
difference between direct and
consensual PLR.
 Pupillary Light Reflex
 Direct: shine light in one eye and the
pupil should constrict
 Consensual: shine light in one eye and
both eyes should constrict
Explain the Schirmer Tear Test and
the normal values.
 Measures amount of tear production
 Strip must touch cornea for 1 minute
then read immediately
 Normal range: 15-25 mm/min
What is Fluorescein stain used
to detect? How do you know if
it is positive?
 Used to detect corneal ulcers
 Green is positive
What type of drug is used to
constrict the pupils?
 Miotics
This eye disease causes the
pupil to appear a soft gray color
and only causes a slight
blurring of the visionand poor
depth perception.
 Nuclear or Lenticular Sclerosis
This is the abnormal position of
eyelashes on a lid margin that
result in irritation of the eye.
 Distichiasis
Transmission of parasites involve 3
factors:
 Source of infection
 Mode of transmission
 Presence of a susceptible host
 Sarcoptes scabiei
 Is Sarcoptes scabiei zoonotic?
YES!
 How do you diagnose it?
Deep skin scraping
 Name 1 method of treatment.
Dips (Mitaban)
Ivermectin
Revolution
Anti-itch shampoo
 Otodectes cynotis
Otodectes cynotis
 Common name?
Ear mite
 What is the appearance?
“Coffee ground” appearance, black waxy
 Treatment?
Acarexx, Milbemite and Revolution
 Demodex
Demodex
 Common Name?
Follicle mite
 3 forms of disease?
Localized, Generalized, Demodectic
pododermatitis
 Zoonotic?
No
 Cheyletiella spp.
Cheyletiella spp.
 Common Name
Walking Dandruff
 Diagnosis
Superficial skin scraping
Clear tape test
 Ixodes scapularis
 Deer Tick
 Dermacentor variabilis
 American Dog Tick
 Order Mallophaga
 Chewing or biting
 Order Anoplura
 Sucking
 Ctenocephalides felis felis
 Flea
Cat fecal
Dog fecal
Dog fecal
Dog fecal
Dog fecal
Cat fecal
Cat fecal
Cat fecal
Cat fecal
Dog Fecal
Dog fecal
Cattle fecal
Dog urine
Horse
Horse fecal
Ruminant fecal
Ruminant fecal
Dog fecal
Dog fecal
Dog fecal
Dog fecal
Dog fecal
Pig fecal
Dog fecal (very large egg!)
Dog fecal
Dog fecal
Swine fecal
What do Ascarids cause in people?
 Ocular, visceral and neural migrans
 Are Hookworms zoonotic?
YES
 What do they cause?
Cutaneous larval migrans
What is the most common GI
nematode of swine?
 Ascaris suum
What is the “HOT” complex?
 H = Haemonchus
 O = Ostertagia
 T = Trichostrongylus
What method do you use to find
Pinworms in horses?
 Scotch tape technique
 What is another reason a male horses
rubs its tail?
-Dirty sheath
Define aberrant host
 Parasite not normally found and
unsuitable for development
 Roundworms in people
Name the parasite located in
the bladder and the paratenic
host is the earthworm.
 Pearsonema plica
What don’t we commonly see
tapeworm eggs in fecals?
 Located in egg pouches within the
proglottid
 Not seen unless proglottid is ruptured
Which tapeworm’s intermediate
host is the flea?
 Dipylidium caninum
 What is the name of the beef
tapeworm?
Taenia saginata
 What is the name of the swine
tapeworm?
Taenia solium
What is the name of the common
liver fluke?
 Fasciola hepatica
 Which form of Giardia is found in
formed feces?
cysts
 Which form of Giardia is found in
diarrheic feces?
trophozoites
What is the name of the
parasite that pregnant women
need to be aware of?
 Toxoplasma gondii
What parasite causes flu-like
symptoms in immunocompetent
people?
 Cryptosporidium spp.
 What is the name of the parasite that
causes EPM in horses?
Sarcocystis spp.
 What animal transmits EPM to
horses?
Opossums
GOOD LUCK on your finals