Additive fixative - Study guides, Class notes & Summaries

Histotechnology- Fixation Question and answers already passed 2023/2024Fixation: - correct answers Alteration of biological tissue by chemical or physical means which stabilizes proteins found in tissue, preventing further metabolic activity. Purpose of Fixation: - correct answers To kill tissue and preserve it by limiting the effects of decay, putrefaction, and autolysis. Fixation also hardens tissue which makes it easier to gross, and easier to section once it is processed and embedded. ...

Absorption - correct answers When tissue is penetrated by, or absorbs, a dye solution and becomes colored without any other change or chemical reaction occurring. An example is the absorption of oil red O or Sudan black B by fat Achromatic - correct answers Without color, or not easily stained. In microscopy, achromatic lenses are corrected for two colors, red and blue. This helps produce images free of chromatic aberrations Acid mucosubstances - correct answers a term used to include bot...

Acetic Acid - Answer Non coagulant, penetrates quickly and leaves tissues very soft. Used often as an additive to precipitate and preserve the nucleoproteins and fix the nuclei. Acetic Acid - Answer 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. Formaldehyde - Answer Non coagulant and additive fixative that reacts with amino groups that link protein chains together. ...

HT Exam - Practice Questions With Complete Solutions.

MLPAO Test Prep ~ Hematology Exam Questions And Answers (Verified And Updated) What does CBC stand for? - answerComplete Blood Count What are the formed elements of blood? - answerWBC, RBC, and Platelets EDTA Anticoagulant - answerMaintains cell shape and size and prevents blood from clotting by binding to calcium Heparin Anticoagulant - answerInitiates cell clumping and provides blue background staining Citrate Anticoagulant - answerDilutes the blood due to the volume of the liquid and...

MLPAO Test Prep ~ Hematology Exam Questions And Answers (Verified And Updated) What does CBC stand for? - answerComplete Blood Count What are the formed elements of blood? - answerWBC, RBC, and Platelets EDTA Anticoagulant - answerMaintains cell shape and size and prevents blood from clotting by binding to calcium Heparin Anticoagulant - answerInitiates cell clumping and provides blue background staining Citrate Anticoagulant - answerDilutes the blood due to the volume of the liquid and...

BOC Fixation An example of an additive fixative is one that contains: A. Picric Acid B. Acetic Acid C. Ethyl Alcohol D. Acetone ANSWERS:- Picric Acid When compared with tissue fixed in formalin, tissue fixed in zinc-formalin will show: A. Better ultrastructural preservation B. Decreased immunoreactivity C. Increased enzyme activity D. Superior nuclear detail ANSWERS:- Superior nuclear detail Microscopic examination of an H&E stained section fixed in formalin shows marked nucle...

Histopathologic Techniques: Fixation, Chapter 3 Part I (Gregorios)Fixation - correct answers the first and most critical step in histotechnology involves fixing and preserving fresh tissue for examination first aim: preserve cell (life-like) second aim: harden and protect tissues most important: stabilization of proteins Additive fixation and Non-additive fixation - correct answers the two basic mechanisms involved in fixation Additive fixation - correct answers the chemical constitue...

MLPAO Test Prep ~ Hematology Exam Questions And Answers (Verified And Updated) What does CBC stand for? - answerComplete Blood Count What are the formed elements of blood? - answerWBC, RBC, and Platelets EDTA Anticoagulant - answerMaintains cell shape and size and prevents blood from clotting by binding to calcium Heparin Anticoagulant - answerInitiates cell clumping and provides blue background staining Citrate Anticoagulant - answerDilutes the blood due to the volume of the liquid and...

HT EXAM - PRACTICE QUESTIONS WITH COMPLETE SOLUTIONS.