DEHYDRATION

Question 1

Process of removing intracellular and extracellular water from the tissue following fixation and prior to wax impregnation, by means of DEHYDRATING AGENTS

Answer 1

DEHYDRATION

Question 2

Tissue:Dehydrant ratio

Answer 2

1:10

Question 3

MOST COMMONLY USED

Answer 3

Ethyl alcohol

Question 4

Routine procedures, BEST DEHYDRATING AGENT; fast acting, mixes with water, penetrates easily, not poisonous, not expensive

Answer 4

Ethyl alcohol

Question 5

Blood and tissue films, smear preparation, toxic

Answer 5

Methyl alcohol

Question 6

Plant and animal microtechniques, slow action

Answer 6

Butyl alcohol

Question 7

Cheap, rapid-acting, used for urgent biopsies

Answer 7

Acetone

Question 8

Expensive, highly toxic vapor, not routinely used

Answer 8

Dioxane (diethylene dioxide)

Question 9

Dehydrates rapidly, not harmful to the tissues

Answer 9

Cellosolve

Question 10

Other name for Cellosolve

Answer 10

Ethylene glycol monoethyl ether

Question 11

Dehydrates rapidly, produces little distortion and hardening of tissues

Answer 11

Triethyl phosphate

Question 12

Dehydrating and clearing agent

Answer 12

Tetrahydrofuran