Test 122  (Ocular microbiology)
1. Bacteria that can invade intact corneal epithelium include: 
a. Pseudomonas aeurginosa

b. Neisseria gonorrhoea

c. Haemophilus influenzae

d. Staphylococcus aureus

e. Listeria species

2. Chocolate agar contains:
a. bovine haemoglobin

b. NAD (nicotinamide adenine dinucleotide)

c. vancomycin

d. colistin

e. nystatin

3. Moraxella lacunata:
a. is a Gram positive bacillus

b. causes angular blepharitis

c. grows on MacConkey agar

d. causes corneal ulcer in debilitated patients

e. is sensitive to chloramphenicol

4. Adenovirus:
a. is a double stranded DNA virus

b. can be cultured on HeLa cell lines

c. causes conjunctivitis which responds well to 
    oral acyclovir 

d. causes pharyngoconjunctival fever

e. is implicated in acute retinal necrosis

5. With regard to chlamydia trachomatis:

a. it contains both DNA and RNA

b. it can be grown on McCoy cell culture

c. trachoma is caused by subtypes D to K

d. subtypes A to C are usually sexually transmitted

e. it is sensitive to rifampicin

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