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WorksheetsGram-negative bacteria of medical importance
Total questions: 7
Worksheet time: 6mins
A 5-year-old boy is seen in the pediatric respiratory clinic for a regular review of his cystic fibrosis. He has a productive cough and a specimen is forwarded to the laboratory. Select the culture medium which would be most appropriate to isolate Haemophilus influenzae from this patient.
Blood agar
Chocolate bacitracin agar
MacConkey agar
Mannitol salt agar
For the following clinical and laboratory scenarios, select the most likely organism from the list of options: Oxidase-positive organism isolated from the aerobic bottle only of a set of blood cultures from a patient with neutropaenic sepsis.
Pseudomonas aeruginosa
Klebsiella aerogenes
Salmonella enteritidis
Shigella sonnei
For the following clinical and laboratory scenarios, select the most likely organism from the list of options: Indole-negative and late lactose fermenter isolated from a child with diarrhea in a crèche.
Klebsiella aerogenes
Salmonella enteritidis
Shigella sonnei
Pseudomonas aeruginosa
A 20-year-old heterosexual male presents to his general practitioner with a 24-hour history of painful dysuria and a thin urethral discharge. Nothing abnormal is found on examination. A Gram-stained smear of a urethral swab shows numerous pus cells and scattered intra-and extra-cellular Gram-negative diplococci. Which is the likely causal organism?
Neisseria gonorrhoeae
Treponema pallidum
Calymmatobacterium granulomatis
Chlamydia trachomatis
Salmonella Typhi is one of the causative organisms of
Undulent fever
Dengue fever
Enteric fevers
Remittent fever
The causative organism of whooping cough is
Vibrio cholerae
Bordetella pertussis
Clostridium tetani
Brucella melitensis
Which of the following microorganisms has not been linked to UTI’s?
E. coli
Pseudomonas spp.
Klebsiella spp.
Haemophilus spp.
