519. A 5-year-old child develops a febrile disease with cough, a blotchy rash, and cervical and axillary lymphadenopathy. Also noted is an erythematous, maculopapular rash behind the ears and along the hairline, involving the neck and, to a lesser extent, the trunk. Examination of this patient's oropharynx would likely reveal which of the following lesions?

 A.  Adherent thin, whitish patch on gingiva 
 B.  Cold sores on the lips 
 C.  Curdy white material overlying an erythematous base on the oral mucosa 
 D.  Large shallow ulcers on the oral mucosa 
 E.  Multiple small white spots on the buccal mucosa 

509. A 2-day-old developing plaque consists primarily of

A. Treponema species.
B. Bacteroides species.
C. filamentous organisms.
D. gram-positive cocci and rods.
E. a structureless, non-mineralized pellicle.

450.In Penicillin allergy,Penicillin acts as a

a.Hapten
b.Carrier
c.Superantigen
d.Toxin

Ans-a.Hapten

230.A person working in a abattior presented with pustules on hand which turned into ulcer,which will best help in diagnosis?

a.Trichome methylene blue
b.Carbol fuschin
c.Acid fast stain
d.Calcoflour white

Ans-a.Trichome methylene blue


Explanation:Ref harrison 16th ed pg 1280

73. Mosquito borne transmission appears to be the method of spread in:

a. St. Louis encephalitis   b. Histoplasmosis

c. Typhus  d. Toxoplasmosis

ANS.  A



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59.Tuberculosis is immunologically mediated disorder of

a. Autotoxic type b. Immune complex disease
c. Delayed hypersensitivity d. Anaphylactic type

Ans: C. Delayed hypersensitivity: A non-immunized person by a tuberculin skin test, which yields a delayed hypersensitivity type response to purified protein derivatives of M. tuberculosis. Those immunized for TB or with past-cleared infection will respond with delayed hypersensitivity parallel to those currently in a state of infection and thus the test must be used with caution, particularly with regard to persons from countries where TB immunization is common.

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23.Negative staining is used to demonstrate

a. Bacterial spore b. Bacterial flagella

c. Bacterial capsule d. Bacterial fimbriae

Ans.(c): Ref: 14/6th Ananthararayana

Capsules may be readily demonstrated by negative staining in wet films with India ink, when they are seen as clear halos around the bacteria, against a black background


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