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FB2 Past Exams > 2013 micro > Flashcards

2013 micro Flashcards

1
Q

How is brucellosis acquired?
A. Contaminated blood
B. Oral route
C. breast milk

A

B. Oral route

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2
Q

Which bordetella toxin inhibits cilia movement?
A. Filamentous haemagglutinin
B. Tracheal cytotoxin
C. Pertussis toxin

A

B. Tracheal cytotoxin

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3
Q

Kaposi’s sarcoma is caused by which of the following?
A. HH7
B. HH6
C. HH8

A

C. HH8

human herpes virus 8

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4
Q

Which of the following is the vector for lassa virus?
A. Mosquito
B. Rodents

A

B. Rodents

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5
Q 
Which of the following is true about corynebacteria dephteriae? 
A. Toxin-mediated
B. Gram-negative
C. Motile
D. Capsulated
A

A. Toxin-mediated

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6
Q

Which is most likely linked to septicemia caused by pseuodomonas aeruginosa?
A. Malignancy
B. Ecthyma gangrenosum

A

A. Malignancy

(Ecthyma gangrenosum is linked to pseudomonas but it is a skin-soft tissue infection

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7
Q

Which is true about salmonella?
A. Anaerobe non-lactose fermenter
B. Facultative anaerobe non-lactose fermenter
C. Strict aerobe non-lactose fermenter

A

B. Facultative anaerobe non-lactose fermenter

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8
Q

Which of the following causes swollen lymph nodes at the site of the flea bite?
A. Yersinia pestis
B. Klebsiella aerogenes
C. Yersinia pseudotuberculosis

A

A. Yersinia pestis

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9
Q 
Antigens of which of the following organisms are used in Weil Felix test? 
A. klebsiella
B. proteus mirabilis 
C. E.coli
D. proteus vulgaris
A

D. proteus vulgaris

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10
Q

Which of the following is the reservoir for leptospira icterohaemorrhagiae?
A. Dogs
B. Pigs
C. Rats

A

C. Rats

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11
Q

A 3-year old child got meningitis because of gram-negative diplococci; which of the following vaccines did he probably missed?
A. Meningococcal conjugate vaccine
B. Pneumococcal conjugate vaccine

A

A. Meningococcal conjugate vaccine

against N. meningitis

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12
Q

Which of the following is the major constituent of gram-positive cell wall?
A. Peptidoglycan
B. Teichoic acid

A

A. Peptidoglycan

its the major component, while teichoic acid is avaliable in the gram + cell wall too

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13
Q

What is the best way to diagnose a cyst in the right lobe of the liver?
A. Serology for specific antibodies
B. PCR

A

A. Serology for specific antibodies

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14
Q

What is true about HSV-2?
A. Mostly associated with orolabialdisease
B. Can only effect genital area
C. Associated with neonatal CNS diseases

A

C. Associated with neonatal CNS diseases (ex/ meningitis)

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15
Q

Which of the following causes pneumonitis in kidney transplant patients?
A. CMV
B. VZV

A

A. CMV

its the most common agent

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16
Q

Which hepatitis virus is transmitted by feco-oral route?
A. Hepatitis C
B. Hepatitis B
C. Hepatitis E

A

C. Hepatitis E

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17
Q

Which of the following indicates infectivity of active hepatitis B infection?
A. HBsAg
B. HBeAg
C. HBe-Antibody

A

B. HBeAg

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18
Q

Which bacteria cause hemolytic uremic syndrome?
A. H. pylori
B. Campylobacter jejnuni

A

B. Campylobacter jejnuni

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19
Q

Which of the following causes latent infection?
A- Cholera
B- Mycobacterium tuberculosis

A

B- Mycobacterium tuberculosis

20
Q

Which of the following contributes to acid fastness by Mycobacterium tuberculosis?
A. Peptidoglycan
B. Mycolic acid
C. alpha toxin

A

B. Mycolic acid

21
Q

Which of the following forms endospores?
A. Clostridium botulinum
B. Clostridium difficile
C. Clostridium tetani

A

A. Clostridium botulinum

22
Q

Which of the following is a predisposing factor to get clostridium difficile infection?
A. Hospitalization in geriatric ward
B. Taking antibiotics
C. A and B

A

C

23
Q 
Which serogroup of N. meningitides causes epidemic meningitis in Africa? 
A. A
B. B 
C. C
D. W-135
A

serogroup A

24
Q

Which of the following contributes to persistence of s. aureus on foreign bodies?
A. Lipoteichoic acid
B. Peptidoglycan
C. Extracellar polysaccharides

A

C. Extracellar polysaccharides

25
Q

What is true about mumps?
A. Can be prevented by a vaccine
B. Spread by sexual intercourse
C. Always symptomatic

A

A. Can be prevented by a vaccine

26
Q 
What is the combination of HA & NA in bird flu 2004-2007 pandemic?
A. H3N1 
B. H2N2 
C. H3N2 
D. H5N1 
E. H1N1
A

D. H5N1

27
Q

Someone was tested positive in ELISA test for HIV; what is the next step in the diagnosis?
A. Confirmatory test
B. Start immediate treatment

A

A. Confirmatory test

28
Q

A 6 year old child presented with meningitis. Gram staining of the CSF showed gram positive coccobacilli; what is the causative agent?
A. Legionella
B. Heamophilus influenza
C. H. ducreyi

A

B. Heamophilus influenza

29
Q

Which of the following causes ophthalmia neonatorum?
A. H. aegypticus
B. S. Aureus
C. Chlamydia trachomatis

A

C. Chlamydia trachomatis

30
Q

What causes severe community acquired pneumonia?

A

Streptococcus pneumonia

31
Q

Which of the following causes condyloma accuminata?
A. Adenovirus
B. HPV
C. Enterovirus

A

HPV

32
Q

Which virus causes acute respiratory disease?
A. Enterovirus
B. HPV
C. adenovirus

A

adenovirus

33
Q

What is a characteristic of listeria monocytogenes?
A. Extracellular parasite
B. Tumbling motility

A

Tumbling motility

34
Q

What makes someone more susceptible to acquire HIV infection?
A. Being in normal contact w/an HIV + person
B. Blood transfusion from unscreened donor

A

B. Blood transfusion from unscreened donor

35
Q

Which stage of schistosoma causes the primary pathology in the urinary infection?
A. Larvae
B. Ova

A

B. Ova

36
Q

Where do cutaneous leshmanial parasites stay?
A. RBC
B. Hepatocytes
C. Macrophages

A

C. Macrophages

37
Q

What stage of plasmodium vivax stays in the liver during a relapse?
A. Sporozoites
B. Merozoites
C. Hypnozoites

A

C. Hypnozoites

38
Q

Which of the following is a component of the fungal cell wall?
A. Peptidoglycan
B. Glucan and chithin
C. Cholesterol and ergosterol

A

B. Glucan and chithin

39
Q

Which method is used to diagnose acute filarial infection?
A. Microscopy of lymphatics
B. Microscopy of nucleopore filtered blood
C. Microscopy of thin and thick blood
D. Serology for antibody detection

A

B. Microscopy of nucleopore filtered blood

40
Q

What virus causes myocarditis?

A

Coxsackie B

41
Q 
Which fungus is endemic in southeast Asia? 
A. Aspergillus
B. Histoplasma capsulatum 
C. Coccidiodis immitis
D. Talaromyces marnefii
A

D. Talaromyces marnefii

talaromyces= penicillium

42
Q 
Aspergillosis is acquired by inhalation of which of the following? 
A. Arthroconidia
B. Blastoconidia 
C. Sporangiospores 
D. Conidia
A

D. conidia

43
Q

Which of the following produces branched septate hyphae?

A

Aspergillus flavus

44
Q

Which of the following causes severe community-acquired pneumonia?
A. Chlamydia pneumoniae
B. Streptococcus pneumonia

A

B. Streptococcus pneumonia

45
Q

What is the initial site of lesion in giardiasis?

A

Duodenum

FB2 Past Exams (32 decks)

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