KROK 1 2013 – Question 69 · KROK (Medicine) · Microbiology, Virology, and Immunology

A smear of sputum from the patient with suspected lobar pneumonia was stained with the use of the following stains and reagents: solution of gentian violet, Lugol’s solution, 96° alcohol, water magenta. What staining method was applied in this case?

  1. A. Leffler
  2. B. Romanovsky
  3. C. Gram
  4. D. Ziehl-Nielsen
  5. E. Neisser
Hint

Match the reagents listed with their roles (primary dye, iodine mordant, alcohol decolouriser, counterstain) and recall which routine differential stain uses that sequence.

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