302. A patient is taken to the infectious department with preliminary diagnosis of botulism. What reaction should be performed to investigate botulinic toxin?
А. Neutralization test.
В. Agglutination reaction.
С. Complement fixation test.
D. Precipitation reaction.
Е. Immunofluorescence test.
303. A 56-year-old male is admitted to hospital with the disturbances of eye muscle coordination, difficulty with speech and swallowing. These symptoms appeared after eating home-made tinned vegetables 24 hours later. What preparation has to be administered to the patient immediately?
А. Antibotulinic polyvalent serum.
В. Botulinic toxoid types A, B, Е.
С. Specific serum for neutralization test.
D. Antihistamine preparation.
Е. Donor γ (gamma) - globulin.
304. Home-made dried fish likely to cause severe food poisoning was sent to bacteriological laboratory. Symptoms of the disease specify the action of strong exotoxin which involves nucleus of medulla oblongata. What diagnosis did the doctor specify in a laboratory request form to the investigated material?
А. Botulism.
В. Salmonellosis.
С. Dysentery.
D. Cholera.
Е. Typhoid fever.
305. A patient showed signs of acute food poisoning after eating cakes that had been kept at room temperature over a day. Pure culture of Gram-positive cocci was isolated in the pustry. The selected culture created a hemolytic zone on blood agar; when cultured in yolk-salt agar it showed bacteria lecithinase activity; on milk-salt agar light pigmented colonies were created. 2 hours later they produced coagulation of plasma. What pathogen caused the disease?
А. Staphylococcus aureus.
В. Staphylococcus epidermidis.
С. Staphylococcus saprophyticus.
D. Salmonella typhimurium.
Е. Salmonella enterica.
306. Materials (washing waters, home stockfish) suspected of posessing causative agent of botulism were delivered to bacteriological laboratory. What nutrient medium is suggested to perform the primary inoculation of the material?
А. Kitt-Tarozzi medium.
В. Blood sugar agar.
С. Sugar agar.
D. Sugar broth.
Е. Serum agar.
307. Canned vegetables that were likely to cause botulism in several people were sent to the bacteriological laboratory. What conditions of cultivation should be followed to identify the causative agent in the target material?
А. Cultivation in the absence of oxygen.
В. Addition of antibiotics that oppress the growth of Gram-negative microorganisms.
С. Creation of nutrient alkaline reaction.
D. Cultivation of the crop at a temperature below 35 °C.
Е. Addition of vitamins and aminoacids.
308. A few children of the kindergarten presented to the pediatric infectious department with the signs of vomiting, high temperature, and watery stool. The onset of the disease was noted within 3 hours after lunch. At lunch the children ate mashed potatoes with sausages. What disease can be suspected in this case?
А. Food born toxic infection.
В. Dysentery.
С. Cholera.
D. Colienteritis.
Е. Typhoid fever.
309. Junior students ate cream cakes and candy during the break. Some time later, the majority of children complained of nausea, abdominal pain, and diarrhea. Which of the agents is most likely to cause poisoning?
А. Staphylococcus aureus.
В. Pseudomonas aeruginosa.
С. Candida albicans.
D. Streptococcus pyogenes.
Е. Neisseria catarrhalis.
310. A patient suspected of food born disease is diagnosed with botulism. What should be done initially by the doctor? What should be administered to the patient for adequate treatment?
А. Washing of the stomach, antibotulinic serum, antibiotics.
В. Antibiotics, vaccine.
С. Washing of the stomach, vaccine, antibiotics.
D. Antibotulinic sera, antibiotics.
Е. Washing of the stomach, antibotulinic serum, vaccine.
311. Several people developed symptoms of food poisoning after celebrating anniversary with a festive table. Duck eggs had been used for cooking cream cake was. What genus of bacterium might cause the disease?
А. Salmonella.
В. Shigella.
С. Clostridia.
D. Yersinia.
Е. Corynebacteria.
312. Feces of a child who is diagnosed with enteritis are reconstituted in saline, and a drop of suspension grown in 10% yolk agar is added. What enzyme is found in the pathogenicity of this medium?
А. Lecithinase.
В. Colicines.
С. Streptokinase.
D. Hemolysin.
Е. Hyaluronidase.
313. An 8-month-old child suffered from intestinal disturbances. Qualitative and quantitative analysis of intestinal micro flora suggested the diagnosis of dysbacteriosis. The child was administered a number of coli protease bacteriophages for treatment. What is the mechanism of this remedy effect?
А. It is conditional lysis of opportunistic enterobacteria.
В. It contributes to the reproduction of bifidobacteria.
С. It enhances antagonistic activity of lactobacilli.
D. It stimulates the synthesis of secretory IgA (sIgA).
Е. It improves barrier properties of mucosal ulcers.
314. Food poisoning investigation identified a culture of anaerobic spore of Gram positive bacteria. The properties of what species are they most likely to be?
А. Clostridium perfringens.
В. Proteus vulgaris.
С. Proteus mirabilis.
D. Vibrio parahaemolyticus.
Е. Escherichia coli.
