Formalin pigment Study guides, Class notes & Summaries
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CSMLS Practice Questions and Answers Verified Solution A+
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CSMLS Practice Questions and Answers Verified Solution A+ 
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 - Correct Answer-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. trea...
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CSMLS Histology Fixation Questions and Answers with complete solution
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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 - Answer-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 - Answer-c. Bouin 
The ratio of fixative to tissue should be 
a. 1:2 
b. 5:10 
c.15:20 
d. 25:50 - Answer-c. 15 times to 20 times 
Tissue must be wa...
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CSMLS Chemistry Latest Update Graded A+
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CSMLS Chemistry Latest Update 
 
Graded A+ 
 
Chilled Samples ACTH, lactic acid, ammonia, blood gases, acetone, gastrin, glucagon, 
pyruvate, renin 
 
Protect samples from light bili, carotene, erythrocyte protoporphyrin, vitamin A, vitamin 
B12 
 
Warm Samples Cold agglutinins, cryoglobulins 
 
Fasting samples Fasting blood sugar, triglycerides, lipid panel, gastrin, insulin 
 
Formalin pigment Aka acid formalin hematin. Brown, granrular, doubly refractile deposit 
 
Remove with picric acid aft...
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CSMLS chemistry Questions With 100% Correct Answers!!
- Exam (elaborations) • 35 pages • 2024
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Chilled Samples - Answer-ACTH, lactic acid, ammonia, blood gases, acetone, gastrin, glucagon, 
pyruvate, renin 
Protect samples from light - Answer-bili, carotene, erythrocyte protoporphyrin, vitamin A, vitamin 
B12 
Warm Samples - Answer-Cold agglutinins, cryoglobulins 
Fasting samples - Answer-Fasting blood sugar, triglycerides, lipid panel, gastrin, insulin 
Formalin pigment - Answer-Aka acid formalin hematin. Brown, granrular, doubly refractile deposit 
Remove with picric acid after 100% alc...
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CSMLS Practice Questions and Answers 100% Pass
- Exam (elaborations) • 26 pages • 2024
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CSMLS Practice Questions and Answers 
 
100% Pass 
 
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 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 alcohol...
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Histotechnology questions & answers rated A+ 2023/2024
- Exam (elaborations) • 33 pages • 2023
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fixitive used for specimens - correct answers 10% neutral buffered Formalin 
 
Marking Margins - correct answers - to identify resection margins, if tumour too close to these margins they know they have to go in and cut more out 
- Guide to embedding 
 
What is used to clean grossing station - correct answers phenolic disenfectant or gluteroldehyde 
 
how long is specimens stored for - correct answers 1-3 months 
some legal cases kept indefinitly 
 
Why is fresh tissue not stored? - correct answ...
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CSMLS practice questions with complete solution
- Exam (elaborations) • 16 pages • 2024
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Available in package deal
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CSMLS practice questions with complete solution 
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 - CORRECT 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? 
a. maintain formalin at a neutral pH 
b. treat sections with...
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Histotechnology - Fixation question n answers rated A+ 2023/2024
- Exam (elaborations) • 12 pages • 2023
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Histotechnology - FixationThe 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 
 
Which of the following fixatives contains picric acid, formalin, and acetic acid? 
a. Zenker 
b. Helly 
c. Bouin 
d. Zamboni - correct answers c 
 
The volume of fixative should exceed the volume of the tissue by: 
a. 1 time to 2 times 
b. 5 times to 10 times 
c. 15 times to 20 ...
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CSMLS chemistry exam questions and answers
- Exam (elaborations) • 38 pages • 2024
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CSMLS chemistry exam questions and answers 
Chilled Samples - CORRECT ANS-ACTH, lactic acid, ammonia, blood gases, acetone, gastrin, glucagon, pyruvate, renin 
 
Protect samples from light - CORRECT ANS-bili, carotene, erythrocyte protoporphyrin, vitamin A, vitamin B12 
 
Warm Samples - CORRECT ANS-Cold agglutinins, cryoglobulins 
 
Fasting samples - CORRECT ANS-Fasting blood sugar, triglycerides, lipid panel, gastrin, insulin 
 
Formalin pigment - CORRECT ANS-Aka acid formalin hematin. Brown, g...
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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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