mock exam Flashcards
With respect to the PLR, which of the following statements is FALSE?:
a. In species with >50% decussation the indirect PLR is stronger than
the direct PLR
b. It is unnecessary to evaluate the indirect PLR if both eyes are visual and have a direct PLR
c. Non-mammalian vertebrates only have a direct PLR
d. An animal with cortical blindness can have a normal PLR
a. In species with >50% decussation the indirect PLR is stronger than
the direct PLR
With regards to biomicroscopy of the cornea, what is the minimum level of
magnification require to appreciate individual endothelial cells?:
a. 10X
b. 25X
c. 50X
d. 100 X
b. 25X
Which of the following best describes anterior chamber volumes in veterinary
species?:
a. Rabbit = 0.3ml, dog = 0.6ml, cat = 0.4ml
b. Rabbit = 0.5ml, dog = 0.6ml, cat = 0.77ml
c. Rabbit = 0.3ml, dog = 0.6ml, cat = 0.6ml
d. Rabbit = 0.5ml, dog = 1.0ml, cat = 0.6ml
c. Rabbit = 0.3ml, dog = 0.6ml, cat = 0.6ml
With regards to vitreocentesis in the dog, which of the following statements best matches the recommended technique?:
a. It should be performed with a 26G needle 6mm posterior to the limbus
b. It should be performed with a 24G needle 6mm posterior to the limbus
c. It should be performed with a 24G needle 10mm posterior to the limbus
d. It should be performed with a 26G needed 10mm posterior to the limbus
a. It should be performed with a 26G needle 6mm posterior to the limbus
In the dog, the orbital fissure acts as a conduit for which cranial nerves, or one or more branches of these nerves?:
a. II, III, IV, V, VI
b. III, IV, VI
c. IV, V, VI, VIII
d. II, III,V, VI
b. III, IV, VI
Which of the following is NOT a typical clinical characteristic of intraconal orbital disease
a. Axial exophthalmos
b. Minimal/absent protrusion of the third eyelid
c. Minimal/absent strabismus
d. Retention of ocular motility
d. Retention of ocular motility
Which of the following canine ocular anomalies is NOT typically associated with the merle gene:
a. Microphthalmos
b. Optic nerve coloboma c. PPM
d. Uveitis
d. Uveitis
Which of the following is NOT a typical feature of extraocular polymyositis:
a. Golden Retriever breed is over-represented
b. Bilateral exophthalmos
c. Bilateral nictitans protrusion
d. History of a previous ‘stressor’ such as oestrus
c. Bilateral nictitans protrusion
With regards to traumatic proptosis, which of the following statements is TRUE:
a. The prognosis for restoration of vision in cats following proptosis is fair
b. Approximately 60-70% dogs retain vision following proptosis
c. Retention of a consensual PLR from the affected eye to the
unaffected eye is a positive prognostic indicator
d. Dolicocephalicbreedsofdogareatincreasedrisk
c. Retention of a consensual PLR from the affected eye to the
unaffected eye is a positive prognostic indicator
Which of the following is not typically associated with infections with canine distemper virus?: a. Chorioretinitis b. Optic neuritis c. Lacrimal adenitis d. Iritis
d. Iritis
Approximately what % of cases of facial paralysis are thought to be idiopathic in dogs?:
a. 25% b. 50% c. 75% d. 90%
c. 75%
- With regards to fluoroquinolone-related retinal toxicity in cats, which of the following statements is FALSE:?
a. The reported incidence, following enrofloxacin administration, is 0.0008%
b. Marbofloxacin has been associated with retinal toxicity at disease 20 times the manufacturer’s recommended daily dosage
c. Retinal toxicity is most likely explained by inefficacy of the ABCG2 protein
d. Orbifloxacin is associated with dose-dependent retinal degeneration
b. Marbofloxacin has been associated with retinal toxicity at disease 20 times the manufacturer’s recommended daily dosage
Which of the following statements is FALSE regarding the dazzle reflex?:
a. It is a subcortical reflex
b. It is present from approximately 14 days in puppies and kittens
c. It may be absent in animals with ipsilateral facial nerve paralysis
d. It is particularly useful in assessing retinal function when the PLRs cannot be
evaluated
b. It is present from approximately 14 days in puppies and kittens
With regards to the palpebral reflex, which of the following statements is FALSE:?
a. The lateral canthus is innervated by the zygomatic nerve
b. The upper eyelid is innervated by the lacrimal nerve
c. The orbicularis oculi muscle is innervated by the facial nerve
d. The medial canthus is innervated by the mandibular nerve
d. The medial canthus is innervated by the mandibular nerve
Which of the following statements is TRUE regarding drugs used in pharmacological testing of ocular disease relating to autonomic dysfunction:?
a. Physostigmine is a direct-acting parasympathomimetic
b. Pilocarpine is an indirect-acting parasympathomimetic
c. Hydroxyamphetamine is an indirect-acting sympathomimetic
d. Phenylephrine is a direct-acting sympatholytic
c. Hydroxyamphetamine is an indirect-acting sympathomimetic
Second order Horner’s syndrome is not associated with a lesion in which of the following?:
a. Cervical spinal cord
b. T1-T3 spinal cord
c. T1-T3 ventral nerve roots
d. Sympathetic trunk
a. Cervical spinal cord
Which of the following statements is FALSE regarding cavernous sinus syndrome?:
a. The cavernous sinus extends from the orbital fissure to the petro-occipital
canal
b. CNs III, IV and VI and the ophthalmic and mandibular branches of CNV are located in close proximity to the cavernous sinus
c. Disease processes involving the orbit may result in cavernous sinus syndrome
d. Mydriasis is a typical sign of cavernous sinus syndrome
b. CNs III, IV and VI and the ophthalmic and mandibular branches of CNV are located in close proximity to the cavernous sinus
In cats, what is the most common intraocular abnormality associated with eyelid colobomas?: a. Persistent pupillary membrane b. Choroidalcoloboma c. Optic nerve head coloboma d. Retinal dysplasia
a. Persistent pupillary membrane
- Which is the most common causative organism of feline dermatophytosis?:
a. Trichophyton mentagrophytes
b. Microsporum canis
c. Microsporum gypseum
d. Cladosporiumherbarum
b. Microsporum canis
Which of the following is NOT an example of an autoimmune disease that may affect feline eyelids?: a. Systemic lupus erythematosus b. Discoid lupus erythematosus c. Pemphigus vulgaris d. Pemphigus erythematosus
b. Discoid lupus erythematosus
What are the two most common orbital tumours in dogs?:
a. Lymphoma and haemangioma
b. Haemangiosarcomaandadenocarcinoma
c. Adenocarcinoma and peripheral nerve sheath tumour
d. Squamous cell carcinoma and mast cell tumour
d. Squamous cell carcinoma and mast cell tumour
With regards to Chlamydophila felis, which of the following statements is TRUE?:
a. The incubation period of infection with the organism in cats is approximately
6-9 days
b. It is considered to be a zoonotic agent
c. Conjunctival cytology for inclusion bodies is a reliable method of diagnosis of infection
d. Cats experimentally infected with the organism excrete it from the gastrointestinal tract for 109 days
b. It is considered to be a zoonotic agent
With regards to feline calicivirus (FCV), which of the following statements is FALSE?:
a. It is primarily a respiratory tract pathogen
b. It is a less frequent cause of conjunctivitis than FHV
c. It is a double-stranded DNA virus
d. Most cats infected with FCV become chronically infected and shed the virus continuously
c. It is a double-stranded DNA virus
With regards to feline corneal sequestra, which of the following statements is TRUE:?
a. Studies suggest that FHV-1 in not the inciting factor in many Persian cats with sequestra
b. TBUT values are accelerated (reduced) in eyes of cats with corneal sequestra
c. Conjunctival goblet cell densities are increased in cats with corneal sequestra
d. Spectroflourometry of keratectomy samples have determined that porphyrins
are present in corneal sequestra
a. Studies suggest that FHV-1 in not the inciting factor in many Persian cats with sequestra
