Mcq Subject: Microbiology

Cyst of parasite seen in stool microscopy. What is the organism?

A. Entamoeba dyspar

B. Balantidium coli

C. Giardia lambia

D. Taenia solium

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Malignant pustule is referred to:

A. Facio-cervical actinomycosis

B. Cutaneous anthrax

C. Infected squamous cell carcinoma

D. None of the above

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A 30 year old female is on antibiotics with prolonged IV cannulation, has spike of fever, the likely cause is :

A. Pseudomonas aerugenosa

B. Coagulase negative staphylococcus

C. Streptococcus agalactiae

D. E. coli

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In which of the following, viral load done by Real Time PCR is of no role in investigative procedures?

A. Person with hepatitis B on Tenofovir therapy

B. HSV causing temporal encephalitis

C. BK virus in patient of allograft renal transplant

D. CMV PCR in blood of patient of liver transplant

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A 5-year-old child from a rural area presented to the OPD with pustular lesions on the lower legs. The cuture from the lesion showed hemolytic colonies on the blood agar which were Gram-positive cocci. Which of the following reactions would help to provisionally confirm the diagnosis of group A streptococcal pyoderma?

A. Optochin sensitivity

B. Bacitracin sensitivity

C. Catalase positivity

D. Bile solubility

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All parasites are in hepatocytes Except ?

A. Toxoplasma

B. P. falciparium

C. Leishmania

D. Babesia

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A 35-year-old male farmer presents with multiple discharging cervical sinuses. Which of these stains will be useful for the diagnosis? Where does this organism normally colonise in the body?

A. Grocott Methenamine silver, skin

B. PAS, intestine

C. AFB, mouth

D. Gram-stain, oropharynx

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All of the following are associated with HHV8 except?

A. Kaposi sarcoma

B. Primary effusion lymphoma

C. Castleman disease

D. T-cell leukemia

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Diagnosis of CI. Difficile infection is made by which of the following methods?

A. Toxin gene detection by polymerase chain reaction (PCR)

B. Culture

C. Enzyme - linked immunosorbent assay (ELISA)

D. Nagler's reaction

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Gene not involved in SCID

A. BTK

B. ZAP70

C. IL2RG

D. JAK3

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