KROK 1 2010 – Question 155 · KROK (Medicine) · Microbiology, Virology, and Immunology
A bacteriological laboratory received sputum sample of a patient suffering from tuberculosis. Bacterioscopic examination of smears and detection of tuberculosis bacillus can be realized by one of enrichment methods that involves processing of sputum only with solution of caustic soda. What is this method called?
- A. Filtration
- B. Inactivation
- C. Flotation
- D. Neutralization
- E. Homogenization
Hint
Think about the physical effect that a strong alkali has on thick, mucoid sputum, and why that makes the smear easier to examine.
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