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1
It is the simplest most common and best embedding medium which doesn't distort even it is immersed not more than 4 hours or use in serial sectioning
PARAFFIN WAX
2
What is the most common melting point of paraffin wax
56-58
3
Paraffin wax needed to be pure and filtered before use, what kind of filter should be used
COARSE FILTER PAPER
4
How many times the maximum reuse of paraffin wax
2
5
If paraffin wax was heated to about 100 to 105° c what substance or element trying to be removed
WATER
6
Paraffin wax should not be used with this kind of tissues as it can melt it out
FATTY TISSUE
7
If fixed knife microtome is used what kind of paraffin wax should be used
HIGH MELTING POINT
8
What is added on the paraffin to become paraplast
SYNTHETIC PLASTIC POLYMER
9
Paraplast has a melting point of what temperature
56-57
10
This is good for bones and brain and better in ribboning sections as it does not deposits on the slide after staining and requires no station processing schedule
PARAPLAST
11
This is the substitute similar with paraplast which has the same melting point which is less brittle and less compressible than paraplast
EMBEDDOL
12
This is used for embedding the eyes
BIOLOID
13
Same as paraplast but it contains rubber
TISSUE MAT
14
It has low melting point but it is harder than paraffin and it is not soluble in water but only in 95% ethanol and clearing agents
ESTER WAX
15
This medium requires a heavy duty microtome for sectioning
ESTER WAX
16
This medium is used for enzyme histochemical studies and demonstration of neutral and lipids but it is hydroscopic which attracts water
CARBOWAX
17
Carbowax requires how many changes
4
18
What solution do we use in floating tissue ribbons
PEARSE SOLUTION, BLANK AND MCCARTHY SOLUTION
19
The most common adhesive for ribbon to be adhered on the slide
EGG ALBUMIN
20
This is added to the water for floatation when carbowax is used
SOAP, 10% POLYETHYLENE GLYCOL
21
Celloidin is a purified form of what compound
NITROCELLULOSE
22
This medium is used for hollow cavities which tend to collapse like eyes and this is also used for hard tissues like bones and teeth and can also be used in whole embryo
CELLOIDIN
23
What are the percentages requirement for celloidin according to the thickness of the following tissues Thin- Medium- Thick-
2-4, 4-6, 8-12
24
This medium can be used for neurological tissues and it reduces distortion in sectioning due to its robbery consistency it also requires no heat
CELLOIDIN
25
This medium is very volatile and should be stored in 70 to 80% alcohol. Photo micrographs is also difficult to prepare in this medium
CELLOIDIN
26
This is highly flammable and it used in gun cotton and gunpowder as propellant for firearms
NITROCELLULOSE
27
What method of celloidine impregnation for bones teeth and brain and whole organs which requires soaking in 70 to 80% alcohol until ready for cutting
WET
28
What method in celloidine impregnation which is for wholel eyes and requires gilson's mixture which is chloroform plus cedar wood oil but does not need to be stored in alcohol
DRY
29
This medium can able to tolerate water and more easily to torn than celloidin however it is more explosive than celloidin. It would explode if hit even dry and exposure to direct sunlight should be avoided. This requires special equipment and non-conventional microtomy techniques which is not suitable for clinical histology laboratories
LOW VISCOSITY NITROCELLULOSE
30
This medium is used for light microscopic studies and for high resolution microscopy of tissues that sections which requires thinner than usual about 4 to 6 um and can be used also for renal biopsies and bone marrow biopsies
PLASTIC RESIN
31
Classification of plastic resins according to their chemical composition
EPOXY, POLYESTER, ACRYLIC
32
This is use for ultra structural studies and permits section as thin as 30 to 40 mm to be cut since it is stable in an electron beam
EPOXY
33
This reduces antigenicity but it is but it is sensitive on skin contact and inhalation
EPOXY
34
This is the toxic component of epoxy
VINYLCYCLOHEXANE DIOXIDE
35
This epoxy is the slowest infiltration
BISPHENOL A
36
This epoxy is the fastest infiltration
CYCLOHEXENE DIOXIDE
37
This type of plastic resin medium is rarely used and but it is used for em however epoxide are more superior
POLYESTER
38
It is a type of acrylic plastic resin medium used for light microscopy due to hydrophilic nature
POLYGLYCOL METHACRYLATE
39
It is a type of acrylic plastic racine used for undicalsified bone and other hard tissues due to hardness
METHYL METHACRYLATE
40
In LVN medium, it needs these plasticisers to prevent tendency of tissues to crack
OLEUM RACINI, CASTOR OIL
41
Medium used when dehydration is avoided or when tissues is subjected to histochemical and enzyme studies
GELATIN IMPREGNATION
42
It is a medium used for delicate specimens like friable, necrotic tissues and frozen tissues sections
GELATIN IMPREGNATION
43
In gelatin impregnation, the whole organs are subject to what kind of technique
GOUGH WENWORTH TECHNIQUE
44
When washing out the fixatives using the gelatin infiltration, the tissues are placed with these concentrations
20% GELATIN, 1% PHENOL
45
This prevents the growth of mold in gelatin infiltration
1% PHENOL
46
Preferred fixative for gelatin infiltration for 12-24 hours
10% FORMALIN
47
What is the preferred tissue width in mm and volume of gelatin infiltration
2-3, 25X
48
It is mainly used in double embedding as this medium do not prove sufficient support. They are used for FNAB specimens and small friable pieces
AGAR IMPREGNATION
49
The immortalisation of tissues presentation
EMBEDDING
50
Minimum allowance of surrounding margin of wax
2
51
This is the marker used and putted on the side of the tissue opposite that to be cut during grossing
INDIA INK
52
This must always be read during embedding for proper orientation
REQUISITION FORM
53
What ink should be used on margins of the tissue
INDIA INK
54
These type of tissues are placed diagonally
ELONGATED
55
Tubular tissues like the arteries, vein, fallopian tubes and GITs should be embedded in what perspective
CROSS SECTION
56
Skin biopsies like shave and punch must be oriented in what perspective
SIDE
57
Multiple tissues pieces are aligned in what perspective in the center of the mold
ACROSS THE LONG AXIS
58
Membrane specimens should be oriented in what perspective
SWISS ROLE
59
Endometrial curettings specimen should be oriented in what perspective
KEEP IN CENTER
60
An embedding mold with an L shaped metal plate
LEUCKHART'S EMBEDDING MOLD
61
The methods wherein tissues are first infiltrated w/CELLOIDIN and subsequently embedded in paraffin mass. This is used to facilitate cutting of large blocks of dense firm tissues like brain recommended for making small sections of celloidin blocks
DOUBLE EMBEDDING
62
The process of removing paraffin to form a 4 sided prism
TRIMMING
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