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HISTOPATHOLOGY > IMPREGNATION > Flashcards

IMPREGNATION Flashcards

1
Q

Mixture of highly purified paraffin and synthethic plastic polymers

A

Paraplast

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2
Q

Melting point of paraplast

A

56-57 C

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3
Q

Synthetic wax similar with paraplast

A

Embeddol

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4
Q

Melting point of embeddol

A

56-58 C

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5
Q

Less compressible than paraplast

A

Embeddol

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6
Q

Semisynthetic was recommended for embedding eyes

A

Bioloid

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7
Q

Product of paraffin containing rubber

A

Tissue mat

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8
Q

Ester wax melting point

A

46-48 C

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9
Q

Require heavy duty microfome

A

Ester wax

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10
Q

Example of heavy duty microtome

A

Slide or sledge microtome

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11
Q

Compatible with cellosolve and xylene

A

Ester wax

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12
Q

Polyethylene glycols

A

Carbowax

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13
Q

Melting point of carbowax

A

38-42 C

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14
Q

Purified form of nitrocellulose soluble solvents

A

Celloidin

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15
Q

For neurological tissues

A

Celloidin

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16
Q

for bones brain teeth and whole organs

A

Wer celloidin

17
Q

Wet celloidin block is stored in

A

70-80% alcohol

18
Q

For eyes

A

Dry celloidin

19
Q

Dry celloidin is stored in

A

Gilsons mixture

20
Q

Components of gilsons mixture

A

Chloroform

Cedarwood oil

21
Q

More ecplosive

A

Low viscosity nitrocellulose

22
Q

Tendency to crack in lvm prevented by

A

Plasticizer

  • oleum ricini
  • castor oil
23
Q

Subjected to histochem and enzyme studies

A

Gelatin

24
Q

For frozen specimen

A

Gelatin

25
Q

Plastic resins

A

Epoxy
Polyester
Acrylic

26
Q

Epoxy types

A

Bisphenol a
Epon
Spurr

27
Q

Paraffin oven temp

A

55-60 C

28
Q

Normally temp used for routine work with paraffin

A

56c

29
Q

If the lab temp is 20-24 C

A

54-58 C

30
Q

If the lab temp is 15-18 C

A

50-54 C

31
Q

4 changes of wax 15 minutes intervals

A

Manual

32
Q

Autotechnicon example

A

Elliott bench type processor

33
Q

Parts of the autotechnicon

CSTTB

A 
Cover plate
Spring loaded plunger 
Timing disk 
Transfer arm
Beaker
34
Q

If there is presence of odor in the clearing agent?

A

Paraffin wax should be change

35
Q

The first ethanol bath should?

A

Should be discarded

36
Q

Clearing agent and dilute ethanols should be changed?

A

Atleast once a week

HISTOPATHOLOGY (6 decks)

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