Question 1
Question
Nagler's reaction is used in rapid diagnosis of :
Answer
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A) Gas gangrene
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B) Tetanus
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C) Diphteria
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D) Botulism
Question 2
Question
A 22-year old man fell while riding his motor cycle and suffered an open fracture of his left femur and severe lacerations and crushing injury into the thigh . 24 hours later, pain and swelling in the thigh increased rapidly . serous dicharge from the wound was observed and a crepitus was felt. an important virulence factor of the causative organism is:
Answer
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A) Botulinum neurotoxin
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B) Edema factor
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C) Epidermolytic factor
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D) Lethicinase enzyme
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E) tetanospasmin
Question 3
Question
Traditional media for diagnosis of T.B include all of the following EXCEPT:
Answer
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A) BACTEC system
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B) Lowenstein Jensen
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C) Middle brook agar
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D) Middle brook broth
Question 4
Question
Actinomyces are differentiated from nocardia by all of the following except;
Answer
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A) Commensals in mouth , Git and female genital tract
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B) produce sulpher granules
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C) not acid fast
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D) slower growing organism
Question 5
Question
Which of the following cause TB like disease ?
Question 6
Question
Nocardia brasiliensis infection occurs by:
Question 7
Question
The Env polyprotein is cleaved by:
Answer
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A) viral protease
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B) viral polymerase
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C) host protease
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D) all of the above
Question 8
Question
The following condition is responsible for HIV antigenic variation:
Question 9
Question
Seroconversion in HIV occurs :
Question 10
Question
which of the following viruses cause neck rigidity ;
Answer
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A) sand fly fever virus
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B) Dengue virus
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C) Lassa virus
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D) Hanta virus
Question 11
Question
which of the following viruses cause pulmonary disease:
Answer
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A) Lassa virus
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B) yellow fever virus
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C) Dengue virus
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D) Hanta virus
Question 12
Question
The main virulence factor f pseudomonas in chronic lung disease associated with pts with cystic fibrosis of the lung is:
Answer
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A) Capsule
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B) hemolysin
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C) elastase
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D) pilli
Question 13
Question
Which of the following G-ve bacilli is Ampicillin and cephalosporin sensitive:
Answer
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A) p.Mirabilis
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B) p. vulgaris
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C) K.aerogenes
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D) k.ozaene
Question 14
Question
which of the following bacteria causes osteomylitis in pts with sickle cell anemia
Question 15
Question
which of the following is H2s positive
Question 16
Question
which of the following diseases is/are caused by ssp.pnemoniae (klebsiella)?
Question 17
Question
Recovery in Rhinoviruses common cold is due to:
Answer
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A) IFN alpha
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B) IFN gamma
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C) IL1
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D) non of the above
Question 18
Question
which of the following viruses cause hgic conjunctivitis:
Answer
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A) Coxsakie Group A
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B) Coxsakie Group B
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C) type 70 enterovirus
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D) A+C
Question 19
Question
which of the following viruses cause Aseptic meningitis and flaccid paralysis:
Answer
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A) polio virus
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B) type 71 enterovirus
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C) type 68 enterovirus
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D) A+B
Question 20
Question
the best method for diagnosis of polio virus is:
Answer
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A) RT-PCR
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B) serotyping
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C) A+B
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D) non of the above
Question 21
Question
which of the following viruses causes infantile gastroenteritis:
Answer
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A) corona virus
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B) Rota virus
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C) polio virus
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D) non of the above
Question 22
Question
all of the following bacteria are non motile except:
Answer
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A) yersinia pestis
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B) klebsiella
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C) shigella
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D) H.pylori
Question 23
Question
the main virulence factor of yersinia pestis responsible for dissemination is:
Question 24
Question
which of the following causes hydrolysis of Hippurate:
Answer
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A) campylobacter coli
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B) campylobacter jeujeni
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C) H PYLORI
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D) all of the above
Question 25
Question
all of the following are urease positive except:
Answer
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A) pseudomonas
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B) proteus
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C) H pylori
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D) Y. pseudotuberclosis
Question 26
Question
cholera red reaction is seen in:
Answer
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A) V.cholera
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B) Ecoli
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C) K.oxytoca
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D) p.vulgaris
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E) all of the above
Question 27
Question
treatment of animal bite fever is:
Answer
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A) penicillin G
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B) aminoglycosides
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C) CIPROFLOXACIN
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D) metronidazole
Question 28
Question
which of the following bacteria is cultured on glucose cysteine blood agar:
Question 29
Question
all of the following survive IC in phagocytes except:
Answer
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A) brucella
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B) legionella
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C) franscisella
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D) Campylobacter coli
Question 30
Question
treatment of meningitis and epiglottitis caused by H.influenza is treated by :
Answer
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A) ceftriaxone
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B) amoxicillin
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C) Tetracyclin
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D) all of the above