Microaerophilic Nonsporeforming Gram-negative Rods (Causative Agents of Campylobacteriosis and Helicobacteriosis)10
265. Patient C., 28 years old, presented with acute colitis and signs of moderate intoxication and diarrhoea. Feces contained blood streaks. Catalase positive and Gram-negative microaerophilic bacteria were isolated through bacteriological investigation. They didn’t grow at 25 °C, were urease-negative; when two cells were taken together they looked like "sea-gull wing", didn’t produce spores and capsules, were mobile. What bacteria are they likely to be?
А. Escherichia coli.
В. Haemophilus influenzae.
С. Proteus vulgaris.
D. Campylobacter jejuni.
Е. Salmonella typhi.
266. Bacteriological investigation of the material obtained from the patient suggested the diagnosis of campylobacteriosis. What peculiarity of bacteria isolated from the patient was taken into consideration during cultivation?
А. Presence of enzymes in urease.
В. Microaerophilic.
С. Cells of gastric type colonization.
D. Spores and capsules absence.
Е. Presence of six polar flagella.
267. In the kindergarten an outbreak of gastroenteritis similar to campylobacteriosis is registered. What serological reaction can be used to confirm the diagnosis?
А. Haemagglutination inhibition test.
В. Passive haemagglutination test.
С. Neutralisation test.
D. Precipitation test.
Е. Haemagglutination test.
268. Microbiological investigation of the patient’s feces suggested the diagnosis of campylobacteriosis. What basic method of diagnostics was used?
А. Microscopic.
В. Biological test.
С. Bacteriological.
D. Serological (CFT).
Е. Immunoblotting.
269. In the course of biopsy, specimen from a patient with fibroeasophagogastroduodenoscopy wss studied. The patient was diagnosed with helicobacteriosis. What cultural feature of bacteria was recorded by bacteriologist during investigation?
А. Microaerophilic.
В. The presence of the enzyme urease.
С. Colonization of gastric cell type.
D. Absence of spores and capsules.
Е. Presence of six polar flagella.
270. A patient with gastric ulcer disease underwent fibroeasophagogastroduodenoscopy followed by biopsy of ulcerative mucous coat. Afterwards a smear stained by Gram method was prepared. Balanced biopsy was used to produce samples of urease activity. During microscopy of the smear-print bacteriologist identified Gram-negative spiral microorganisms; test revealed positive urease activity. What bacterium was detected?
А. Helicobacter pylori.
В. Shigella flexneri.
С. Spirilla minor.
D. Campylobacter jejuni.
Е. Treponema pallidum.
271. A patient is assigned for bacteriological examination to estimate the aetiology of gastric ulcer. What pathogen is likely to be identified?
А. Helicobacteria.
В. Shigella.
С. Leptospira.
D. Salmonella.
Е. Listeria.
272. A 45-year-old man is diagnosed with gastric ulcer by X-ray film. What medium will be used for inoculation of bioptic material from the ulcerative wall for the bacteriological confirmation of the diagnosis?
А. Medium for identification of enzyme urease.
В. Blood agar.
С. Endo agar.
D. MPA with bile.
Е. Meat peptone agar.
273. A 28-year-old patient was hospitalized with signs of moderate intoxication and diarrhea. Patient’s feces contained streaks of blood. Bacteriological study of feces identified spiral catalase-positive Gram-negative microaerophilic bacteria. Pathogen had urease activity, spores and capsules were mobile and not formed. What bacterium is characterized by such features?
А. Escherichia coli.
В. Haemophilus influenzae.
С. Proteus mirabilis.
D. Helicobacter pylori.
Е. Salmonella typhi.
274. A patient has been frequently relapsed with ulcerative disease. Doctor administered helicobacteriosis analysis. With the help of what microbiological method will the most reliable findings be obtained?
А. Bacteriological.
В. Microscopic.
C. Biological.
D. Serological (ELISA).
E. Immunoblotting.
275. Microflora of the stomach is related directly with the acidity of gastric juice. Helicobacter pylori survive in gastric juice and often cause peptic ulcer. Which of the enzymes is capable to maintain survival of Helicobacter pylori in gastric juice?
А. Urease.
В. Protease.
С. Adenylcyclase.
D. Lipase.
Е. Hyaluronidase.
276. A patient is diagnosed with gastric ulcer. On the 5th day of bacteriological study of biopsy obtained from the damaged part of the stomach, small colonies of Gram-negative oxidised-positive spiral bacteria grew on chocolate agar. Which of the microorganisms is most likely to cause stomach ulcers?
А. Helicobacter pylori.
В. Campylobacter jejuni.
С. Campylobacter fetus.
D. Mycoplasma hominis.
Е. Chlamydia trachomatis.
