CLEARING

Question 1

aka alcoholization

Answer 1

clearing

Question 2

removal of the dehydrating agent and replacement of a fluid (clearing agent) that is miscible with both the dehydrating agent impregnating/embedding medium

Answer 2

clearing

Question 3

makes the tissues “translucent” (increases refractive index)

Answer 3

clearing

Question 5

over clearing may cause ____

Answer 5

tissue brittleness

Question 6

commonly used clearing agents

Answer 6

• xylene
• toulene
• benzene
• chloroform
• cedarwood oil
• aniline oil
• clove oil
• carbon tetrachloride

Question 7

xylene aka

Answer 7

xylol

Question 8

most commonly used clearing agent in routine procedures

Answer 8

xylene

Question 9

milky xylene is due to

Answer 9

incomplete dehydration

Question 10

substitute for xylene or benzene; toxic upon prolonged exposure

Answer 10

toluene (toluol)

Question 11

can cause aplastic anemia (pancytopenia) and carcinogenic

Answer 11

benzene

Question 12

recommended for tough tissues, brain, lymph nodes

Answer 12

chloroform

Question 13

tissues tend to _____ in chloroform

Answer 13

float (anong ginagawa sa mga lutang? balutan ng gauze)

Question 14

hepatotoxic

Answer 14

chloroform

Question 15

recommended for CNS tissues and cytology such as smooth muscles and skin; very slow and expensive

Answer 15

cedarwood oil

Question 16

recommended for embryos, insect, and very delicate tissues

Answer 16

aniline oil

Question 17

becomes adulterated; recommended for skin and smooth muscle

Answer 17

clove oil

Question 18

similar to chloroform but cheaper

Answer 18

carbon tetrachloride

Question 19

slow acting; for double embedding technique

Answer 19

methyl benzoate and methyl salicylate

Question 20

for smooth muscle; rotten egg odor due to sulfur

Answer 20

carbon disulfide

Question 21

for delicate materials like eyes

Answer 21

terpineol

Question 22

excellent clearing agent

Answer 22

highest test aviation lead free gasoline