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 ?

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. 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 ?

   A. Bile solubility B. Optochin sensitivity C. Bacitracin sensitivity D. Cataslase positive...

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

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

4. Gram -ve bacteria stain during gram staining____________?

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

5. The best way of detecting the presence of viruses in the infected cell – culture is____________?

   A. Cytopathic changes in culture cells B. Presence of viral protein in the infected monolayer C. Haemagglutination test D. Haemagglutination inhibition test...

6. Combination of ampicillin and gentamicin is an example of_____________?

   A. Indifference B. Synergy C. Antagonism D. Bacterial symbiosis...

7. Which of the following penicillins has the best gram negative spectrum ?

   A. Methicillin B. Ampicillin C. Penicillin V D. Cefixime...

8. Cyanosis or bluish coloration of skin and mucus membrane depends upon______________?

   A. The relative proportion of reduced and oxygenated hemoglobin B. The absolute amount of reduced hemoglobin C. Thickness of the skin D. Fragility of capillaries...

9. In humans and other primates as well as in guinea pigs, this vitamin cannot be synthesized because of the absence of the enzyme L-gulonolactone oxidase: the vitamin is_____________?

   A. Pantothenic acid B. Nicotinic acid C. Ascorbic acid D. Folic acid...

10. In a 2 year old child, a bluish dome shaped swelling on the inner side of the lip is mostly_____________?

    A. Hematoma B. Mucocoele C. Hemangioma D. None of the above...