Fixatives MCQ 15+

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• 10% Formalin solution
  ক

  Is an irritant agent for eyes

  খ

  Is a colourless fluid

  গ

  Prevents autolysis of biopsy samples

  ঘ

  Is used as a fixative for cytology samples

  ঙ

  Should be used for sending frozen section samples
• The solutions used as fixatives for pathological specimensare
  ক

  10% formation

  খ

  95% ethanol

  গ

  40% formaldehyde gas

  ঘ

  Normal saline

  ঙ

  Liquid paraffin
• The following fluids are used as fixative for biopsy samples
  ক

  Bouin’s fluid

  খ

  10% formalin

  গ

  Normal saline

  ঘ

  Liquid paraffin

  ঙ

  Savlon
• Preservatives are used after biopsy to
  ক

  Process the tissue for microtome sectioning

  খ

  Prevent autolysis

  গ

  Stabilize tissue architecture

  ঘ

  Prevent bacterial growth

  ঙ

  Proceed for bacterial culture
• The following chemicals can be used as fixatives for biopsy samples
  ক

  Zenker’s solution

  খ

  Bouin’s solution

  গ

  10% buffered formalin

  ঘ

  Normal saline

  ঙ

  Paraffin wax
• Following chemicals/ Substances are used as fixative for biopsy/cytology samples:
  ক

  95% alcohol

  খ

  10% formalin

  গ

  Xylene

  ঘ

  Liquid paraffin

  ঙ

  Normal saline
• Chemicals used as tissue fixatives are
  ক

  Alcohol

  খ

  Formalin

  গ

  Normal saline

  ঘ

  Liquid paraffin

  ঙ

  Glycerine
• The followings are used as fixative for surgical specimen
  ক

  10% buffered formalin

  খ

  Glutaraldehyde

  গ

  Bouin's solution

  ঘ

  40% formalin

  ঙ

  Normal saline
• Fixatives used in cytology are
  ক

  95% ethanol

  খ

  Commercial spray fixative

  গ

  Glutaraldchyde

  ঘ

  10% buffered formalin

  ঙ

  Normal saline
• Autolysis of biopsy samples is prevented by
  ক

  10% formalin

  খ

  Freezing

  গ

  Glutaraldehyde

  ঘ

  10% fomaldehyde

  ঙ

  10% dextrose
• Fixatives used in routine histopathological examination are
  ক

  10% formalin

  খ

  Bouin's solution

  গ

  40% formalin

  ঘ

  Hartman's solution

  ঙ

  Normal saline
• Functional purpose of fixatives in biopsy samples includes
  ক

  Preventing autolysis

  খ

  Facilitating tissue processing

  গ

  Preventing growth of saprophytes

  ঘ

  Keeping tissue viable

  ঙ

  Dissolving calcium from bone
• Fixatives are used to
  ক

  Prevent autolysis

  খ

  Facilitate tissue processing

  গ

  Enhance H&E staining

  ঘ

  Keep the tissue viable

  ঙ

  Dissolve calcium in bony tissue
• Fixation of a biopsy material is
  ক

  Not indicated in frozen section

  খ

  Needed to prevent autolysis

  গ

  Commonly done by 10% formalin

  ঘ

  Can be done by fresh normal saline

  ঙ

  Not needed for immunohistochemistry
• Fixative (s) used in pathology laboratory is/are
  ক

  Alcohol

  খ

  Formalin

  গ

  Glutaraldehyde

  ঘ

  Xylene

  ঙ

  Liquid paraffin