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Elective_2nd year_Step 1_med
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The state sanitary inspector checked a vendor selling homemade pork sausages at the market and suspected sausage adulteration. Which serological test can be used to identify the food substance?
A pregnant woman was registered at a prenatal unit and underwent a comprehensive examination for various infections. Her blood serum tested positive for IgM antibodies against the rubella virus. What does this result indicate?
A serological test was conducted to confirm whooping cough (pertussis) using parapertussis and pertussis diagnostic agents. Grain-like sediment formed at the bottom of the test tube containing the Bordetella parapertussis diagnostic agent. Which antibodies were involved in this reaction?
A man died from an acute infectious disease manifested by fever, jaundice, acute renal insufficiency, and a hemorrhagic rash on the skin and mucous membranes. Histological examination of renal tissue, applying the Romanowsky-Giemsa staining technique, revealed convoluted bacteria resembling (looking like) the letters 'C' and 'S.' Which bacteria were identified?
The area where an old cattle burial site once existed has remained unused for over 50 years. It is intended to use this area to build residential properties. However, soil analysis has detected a pathogen responsible for a highly dangerous disease. Which of the following microorganisms is most likely to persist in the soil for such an extended period?
A 16-year-old boy from a rural area entered an educational establishment. A scheduled Mantoux test was negative. What is the most reasonable action in this case?
The patient, experiencing symptoms such as vomiting, dizziness, double vision, and difficulty swallowing, has been hospitalized. The doctor suspects botulism. What diagnostic methods should be used to confirm the diagnosis?
In the course of the child's school registration process, a Mantoux tuberculin skin test was conducted to identify if revaccination was necessary. The test result was negative. What does this negative result indicate?
A female patient underwent a liver transplantation. After 1.5 months, her condition worsened due to a transplant rejection reaction. Which component of the immune system plays the leading role in this reaction?
Microscopic examination of a Gram-stained scrape from the patient's tongue revealed oval, round, elongated chains of dark-violet cells. What disease can be triggered by this causative agent?