The commonly used fluorescent dye in the detection of tubercie bacilli________________?
Correct answer: D. Auramine and Rhodamine
- A. Acridine orange
- B. Thioglavin
- C. Congo red
- D. Auramine and Rhodamine
Explanation
Auramine-rhodamine fluorescent staining is used to screen sputum and other specimens for acid-fast Mycobacterium tuberculosis. The organisms fluoresce brightly against a darker background, improving detection compared with ordinary Ziehl-Neelsen staining.
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