A child presents with infective skin lesions of the leg. Culture was done which showed gram positive cocci in chains and haemolytic colonies. Which of the following tests will best identify the organism ?

Related Mcqs:

1. 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

2. An oxidase-positive, gram-negative rod which produces a bluish-green pigment has been grown in culture from a swab obtained from an infected burn wound. This organism is susceptible to gentamicin, ticarcillin and tobramicin, but resistant to all the other antibiotics which of the following organisms is it likely to be ?

   A. Escherichia coli
   B. Klebsiella pnemoniae
   C. Proteus miribilis
   D. Pseudomonas aeruginosa

3. Which of the following organisms is found in deep carious lesions rather than in incipient lesions ?

   A. Streptococci
   B. Lactobacilli
   C. Veillonella
   D. Bateroides

4. Gram -ve bacteria stain during gram staining____________?

   A. Blue color
   B. Red color
   C. Green
   D. Colorless

5. Diabetes insipidus, bone lesions lesions and exophthalmos is seen in________________?

   A. Sickle cell anemia
   B. Niemen pick disease
   C. Littere Siewe Disease
   D. Hand-Schuller-Christian disease

6. A 9 year old child’s mother comes to dental clinic with the complaint of oral ulceration, fever and shedding of skin of palms and soles: she is giving history of premature shedding of teeth and increased sweating she is also giving one month history of using any new teething gel available in market. The child is suffering form____________?

   A. Acrodynia
   B. Pemphigus vulgaris
   C. Epidermolysis Bullosa
   D. Erosive lichen planus

7. An elderly male patient presented with fever, chest pain, and dry cough, sputum culture showed growth on charcoal yeast Extract Medium, theorganism is______________?

   A. H. influenza
   B. Moraxella catarrhalis
   C. Legionella
   D. Burkholderia cepacia

8. A five-year old child presents with chronic bed wetting and bilateral loose deciduous first molars. His mother says that she want to drink of water several times during each night. Which of the following is the most likely diagnosis ?

   A. Hand-Schuller Christian disease
   B. Marble bone diasease
   C. Nieman pick disease
   D. Polyostotic fibrous dysplasia

9. The difference between gram positive and negative bacteria lies in their_______________?

   A. cell wall
   B. cell membrane
   C. Nuclear material
   D. Mesosomes

10. A 7-year old child having yellowish discoloured spot of maxillary central incisor. His mother presents a history of injury to deciduous tooth 3 years back with recurrent infection & swelling. The diagnosis is_______________?

    A. Turners hypoplasia
    B. Generalised dental fluorosis
    C. Syphillitic hypoplasia
    D. Rickets hypomineralisation