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Saturday 20 June 2015

MICROBIOLOGY - AIPGMEE 2006 QUESTIONS WITH ANSWERS



Q62.A veterinary doctor had pyrexia of unknown origin.  His blood culture in special laboratory media was positive for gram negative short bacilli which was oxidase positive.  Which one of the following is the likely organism grown in culture?

A.     Pasturella spp.

B.     Francisella spp.

C.     Bartonella spp.

D.     Brucella spp.

Ans: D.  Brucella spp.

Q63.Which one of the following statement is true regarding pathogenicity of Mycobacteria species?

A.     M.tuberculosis is more pathogenic than M.bovis to the humans.

B.     M. Kansasii can cause a disease indistinguishable from tuberculosis.

C.     M.africanum infection is acquired from the environmental source.

D.     M.marinum is responsible for tubercular lymphadenopathy.

Ans: B.   M. Kansasii can cause a disease indistinguishable from tuberculosis.

Q64.A young boy had a flea bite while working in a wheat grain godown.  After 5 days he developed fever and had axillary lymphadenopathy.  A smear was sent to the laboratory to perform a specific staining.  Which one of the following staining method would help in the identification of the suspected pathogen:

A.     Albert staining.

B.     Zeihl Neelson staining

C.     Mc Fadyedan’s staining

D.     Wayson staining

Ans: D.  Wayson staining

Q65.A patient complained of chills and fever following a louse bite 2 weeks before.  He had rashes all over the body and was delirious at the time of presentation to the hospital and subsequently went into coma.  A provisional diagnosis of vasculitis due to Rickettsial infection was made.  Which one of the following can be causative agent:

A.     Rickettsia typhi.

B.     Rickettsia rickettsiae

C.     Rickettsia prowazekii.

D.     Rickettsia akarai.


Ans: C.   Rickettsia prowazekii.

Q66.A diabetic patient developed cellulitis due to Staphylococcus aureus, which was found to be Methicillin resistant on the antibiotic sensitivity testing.  All the following antibiotics will be appropriate except.

A.     Vancomycin

B.     Imipenem

C.     Teichoplanin

D.     Linezolid

Ans: B.   Imipenem

Q67.A VDRL reactive mother gave birth to an infant.  All of the following would help in determining the risk of transmission to the infant except:

A.     TPHA test on the serum sample of the mother.

B.     TPHA test on the serum sample of the infant

C.     VDRL on the paired serum sample of the infant and mother.

D.     Time interval between the treatment of the mother and her delivery.

Ans: B.   TPHA test on the serum sample of the infant