General microbiology

A. Doxycycline hydrochloride B. Rifampicin
C. Streptomycin D. Oxacillin E. Amikacin
21. A stomatologists examined first-grade pupils and revealed that one of children had yellowish brown teeth, two of them were split. Heretofore the pupil was treated with "some pills" on account of pneumonia. What medication could have such a negative effect upon teeth?
A. Doxycycline B. Oxacillin C. Erythromycin
D. Ampicillin E. Biseptol
22. A stomatologists examined first-grade pupils and revealed that one of children had yellowish brown teeth, two of them were split. Heretofore the pupil was treated with "some pills" on account of pneumonia. What medication could have such a negative effect upon teeth?
A. Doxycycline B. Oxacillin C. Erythromycin
D. Ampicillin E. Biseptol
23. A patient with acne has been prescribed doxycycline hydrochloride. What recommendations should be given to the patient, while he is taking this drug?
A. Avoid long stay in the sun
B. Take with large quantity of liquid, preferably milk
C. Take before meal
D. The course of treatment should not exceed 1 day
E. Do not take with vitamins
24. Administration of doxycycline hydrochloride caused an imbalance of the symbiotic intestinal microflora. Specify the kind of imbalance caused by the antibiotic therapy:
A. Dysbacteriosis B. Sensibilization C. Idiosyncrasy
D. Superimposed infection E. Bacteriosis
25. The patient with pneumonia was treated with antibiotics for a long period. After treatment patient complains of frequent and watery stool, abdominal pain. What is the reason of intestine function disorder?
A. Intestinal disbacteriosis development
B. Antibiotics toxic influence on the GIT
C. Autoimmune reaction development
D. Bacteria toxins influence E. Hereditary enzyme defect
26. As a result of durative antibiotic therapy a 37-year old patient developed intestinal dysbacteriosis. What type of drugs should be used in order to normalize intestinal microflora?
A. Eubiotics B. Sulfanilamides C. Bacteriophages
D. Autovaccines E. Vitamins
27. A patient underwent appendectomy. In the postoperative period he has been taking an antibiotic. The patient complains about hearing impairment and vestibular disorders. What group of antibiotics has such by-effects?