Formalin pigment - Study guides, Class notes & Summaries

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BOC Fixation Exam - Questions and Answers
  • BOC Fixation Exam - Questions and Answers

  • Exam (elaborations) • 28 pages • 2024
  • BOC Fixation Exam - Questions and Answers When liver tissue is fixed with 2% to 3% glutaraldehyde: A. Glycogen is dissolved B. The penetration rate is very rapid C. A chemical reaction occurs with lipids D. The ultrastructure is preserved A poor fixative is characterized by: A. The absence of shrinking or swelling of tissue B. Inactivation of tissue enzymes C. Slow tissue penetration D. The absence of distortion of dissolution Bouin solution contains all of the following EXCEPT: A. Picric acid...
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 CSMLS Histology Fixation Questions and answers 100% verified.
  • CSMLS Histology Fixation Questions and answers 100% verified.

  • Exam (elaborations) • 16 pages • 2024
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  • CSMLS Histology Fixation Questions and answers 100% verified. The primary purpose of fixation is to: a. stop enzymatic action b. remove the water from the tissue c. provide support for the tissue d. autolyze the tissue - correct answers.a. enzymes are proteins and rendered inactive by fixation Which of the following fixatives contains picric acid, formalin and acetic acid a. Zenker b. Helly c. Bouin d. Zamboni - correct answers.c. Bouin The rati...
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CSMLS PRACTICE QUESTIONS 2024/2025 WITH GUARANTEED ACCURATE ANSWERS
  • CSMLS PRACTICE QUESTIONS 2024/2025 WITH GUARANTEED ACCURATE ANSWERS

  • Exam (elaborations) • 20 pages • 2024
  • Which of the following actions should be taken when the hematoxylin and eosin stain lacks three distinct shades of pink? a. check pH of fixative b. replace hematoxylin c. check pH of eosin d. increase time in water - ACCURATE ANSWERS c. check pH of eosin A dark brown pigment is noted on formalin fixed, hematoxylin and eosin stained section. What action can prevent this from occurring? a. maintain formalin at a neutral pH b. treat sections with alcoholic picric acid c. "bread loaf" l...
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 CSMLS REVIEW HISTOLOGY QUESTIONS AND ANSWERS LATEST TOP SCORE.
  • CSMLS REVIEW HISTOLOGY QUESTIONS AND ANSWERS LATEST TOP SCORE.

  • Exam (elaborations) • 27 pages • 2024
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  • CSMLS REVIEW HISTOLOGY QUESTIONS AND ANSWERS LATEST TOP SCORE. Grossing - correct ibed tissues (size, weight, colour) Large tissue take section (want outer edge of bad and some normal, and lymph nodes) small tissue do whole thing Put in formalin to start to fix Immunoflourescent studies not fixed Brain fixed several days before being grossed (large container) via circle of willis avoid cone head artifact (big enough container req) Uterus (cut open...
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HTL Prep questions with correct answers
  • HTL Prep questions with correct answers

  • Exam (elaborations) • 98 pages • 2023
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  • The primary purpose of fixation is - Answer To stop enzymatic action Which fixative contains picric acid, formalin, and acetic acid? - Answer Bouin The volume of fixative should exceed the volume of the tissue by - Answer 15-20 times Tissue must be washed in water after fixation in - Answer Zenkers Which fixative contains formalin, potassium dichromate, and mercuric chloride? - Answer Helly Precipitate left in tissues that have been fixed in solutions containing mercuric...
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CSMLS Histology Fixation Questions with complete solutions.
  • CSMLS Histology Fixation Questions with complete solutions.

  • Exam (elaborations) • 10 pages • 2024
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  • CSMLS Histology Fixation Questions with complete solutions. The primary purpose of fixation is to: a. stop enzymatic action b. remove the water from the tissue c. provide support for the tissue d. autolyze the tissue - correct answers.a. enzymes are proteins and rendered inactive by fixation Which of the following fixatives contains picric acid, formalin and acetic acid a. Zenker b. Helly c. Bouin d. Zamboni - correct answers.c. Bouin The ratio of f...
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BOC Study Guide Histotechnology 2nd ed.- Fixation (HT) fully solved graded A+ 2023/2024
  • BOC Study Guide Histotechnology 2nd ed.- Fixation (HT) fully solved graded A+ 2023/2024

  • Exam (elaborations) • 11 pages • 2023
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  • BOC Study Guide Histotechnology 2nd ed.- Fixation (HT)An example of an additive fixative is one that contains: - correct answers picric acid Microscopic examination of an H&E stained section fixed in formalin shows marked nuclear bubbling. One most often sees this artifact if the specimen is processed following: - correct answers incomplete fixation Microscopic evalution of H&E stained sections from a surgically removed small bowl specimen shows an absence of much of the epithelium in othe...
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HTL ASCP Exam 2023.2024 with 100% correct answers
  • HTL ASCP Exam 2023.2024 with 100% correct answers

  • Exam (elaborations) • 5 pages • 2023
  • Non coagulant, penetrates quickly and leaves tissues very soft. Used often as an additive to precipitate and preserve the nucleoproteins and fix the nuclei. - correct answer Acetic Acid Swells tissues dramatically by breaking collagen bonds and allowing bonds to absorb water. Used as additive to counter-act the shrinking effect of other fixatives. - correct answer Acetic Acid Non coagulant and additive fixative that reacts with amino groups that link protein chains together. - correct...
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HTL practice exam 2023.2024 with 100% correct answers
  • HTL practice exam 2023.2024 with 100% correct answers

  • Exam (elaborations) • 4 pages • 2023
  • tissue is fix in order to - correct answer stop enzymatic action which fixatives contains picric acid, formalin, and acetic acid - correct answer bouin the volume of fixative should exceed the volume of the tissue by - correct answer to to 20 times tissue must be washed in running water after fixation in - correct answer zenker solution which fixatives contain formalin, potassium dichromate, and mercuric chloride? - correct answer helly precipitate left in tissue that ha...
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CSMLS practice questions and answers 2023
  • CSMLS practice questions and answers 2023

  • Exam (elaborations) • 33 pages • 2024
  • • Which of the following actions should be taken when the hematoxylin and eosin stain lacks three distinct shades of pink? • check pH of fixative • replace hematoxylin • check pH of eosin • increase time in water: Ans- c. check pH of eosin • A dark brown pigment is noted on formalin fixed, hematoxylin and eosin stained section. What action can prevent this from occurring? • maintain formalin at a neutral pH • treat sections with alcoholic picric acid • "bread loaf...
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