Protozoa Laboratory Methods Quiz
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Questions and Answers

Which method is valuable for preserving fecal specimens containing intestinal protozoa and helminth eggs?

  • Merthiolate Iodine Formaldehyde (MIF) fixative stain (correct)
  • Unstained specimens
  • Wet fixation
  • Glycerol solution
  • Why is the MIF fixative stain useful in preserving specimens?

  • To reduce the need for staining
  • To enhance the visibility of the tiny structures inside the parasite
  • To prevent loss and deterioration of the organism (correct)
  • To speed up the examination process
  • What does the MIF fixative stain consist of?

  • Merthiolate, glycerol, wet fixation
  • Iodine, formaldehyde, glycerol
  • Tincture of merthiolate, formaldehyde, glycerol (correct)
  • Formaldehyde, glycerol, wet fixation
  • What is the advantage of wet fixation over other methods?

    <p>Less distortion of parasites</p> Signup and view all the answers

    What is the purpose of the MIF fixative stain?

    <p>Permits species differentiation through detailed study of structures</p> Signup and view all the answers

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