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Histopath lect > Histological chemicals > Flashcards

Histological chemicals Flashcards

1
Q

Acetic acid can irritate the

A

skin, eyes, respiratory

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2
Q

safe dilution of acetic acid

A

1-10%

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3
Q

concentrated glacial acetic acid should not be mixed with? why?

A

chromic acid, nitric acid, sodium/potassium hydroxide

it can cause explosion

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4
Q

this chemical should be stored away from acids

A

ammonium hydroxide

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5
Q

ammonium hydroxide should not be mixed with? why?

A

formaldehyde

it generates heat and toxic vapors

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6
Q

a potential carcinogen which is dangerous to the eyes, skin, and can cause cyanosis

A

aniline

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7
Q

chloroform is a carcinogenic which can affect the?

A

liver, gastrointestinal tract, reproductive organs, cns

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8
Q

an environmental toxin which is toxic to kidney, mucous membrane, skin, and can cause cancer

A

chromic acid

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9
Q

ethanol can irritate the?

A

skin and eyes

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10
Q

ethlylene glycol is toxic to?

A

reproductive, urinary, and blood systems

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11
Q

this chemical can be used as a substitute for ethlylene glycol

A

propylene-based glycol ethers

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12
Q

simplest aldehyde and the type of gas that is dissolved in water to produce formalin

A

formaldehyde

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13
Q

saturated formaldehyde solution

A

formalin

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14
Q

formic acid can irritate the?

A

skin, eyes, and can corrode metal

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15
Q

glutaraldehyde can cause severe irritation of the?

A

eyes and skin, and toxic to ingestion

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16
Q

dangerous concentrated acid due to its fumes

A

hydrochloric acid

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17
Q

hydrogen peroxide is harmless if used in concentrations?

A

less than 5%

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18
Q

hydroxide is a combination of ___ which is corrosive to skin and eyes

A

sodium and potassium

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19
Q

isopropanol can cause mild irritation to?

A

skin and eyes

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20
Q

fixatives used for processing solutions contaminated with mercury

A

B-5, Helly’s, Zenker’s fixative

21
Q

mercuric fixative can be replaced with?

A

zinc formalin or glyoxal solutions

22
Q

nitric acid is corrosive to?

A

skin, mucous membrane

23
Q

this liquid can cause frost bites or thermal (cold) burns

A

liquid nitrogen

24
Q

this chemical is corrosive to eyes and mucous membrane which should be open under a hood

A

osmium tetroxide

25
Q

repeated skin contact with this chemical can cause dermatitis and slow healing ulcers

A

oxalic acid

26
Q

readily absorbed through skin and may cause increased heart rate, convulsions

A

phenol

27
Q

phenol should not be mixed with?

A

concentrated formaldehyde

28
Q

explosive when dry or when combined with metal and should not be disposed by pouring down the drain

A

picric acid

29
Q

potassium permanganate is a strong oxidant which should not be mixed with?

A

acetic acid, glycerol, ammonium hydroxide, ethanol, ethylene glycol, formaldehyde, glycerol, hydrochloric acid, hydrogen peroxide, sulfuric acid

30
Q

less toxic and used as a substitute for ethylene-based ethers

A

propylene glycol

31
Q

very toxic and can explode when placed in contact with metals

A

sodium azide

32
Q

strong oxidant, eye irritant, corrosive to most metals

A

sodium hypochlorite

33
Q

sodium hypochlorite should not be mixed with?

A

formaldehyde and diaminobenzidine

34
Q

may be used to replaced mercuric oxide when reconstituting Harris hematoxylin

A

sodium iodate

35
Q

repeated exposure to this chemical can cause impaired memory, poor coordination, mood swings, and permanent nerve damage

A

toluene/xylene

36
Q

corrosive to most metals and should not be used in tissue processors

A

zinc chloride

37
Q

concentrated acids should be __

A

added to water

NEVER WATER TO ACID

38
Q

enumerate the chemicals that can irritate

A

AAACEF GIMMPSS

Acetic acid
Ammonium hydroxide
Aniline
Chromic acid
Ethanol
Formic Acid

Glutaraldehyde
Isopropanol
Mercuric chloride
Methanol
Potassium Permanganate
Sodium hypochlorite
Sulfuric Acid

39
Q

enumerate the chemicals that are relatively safe

A

HOPPPASS

Hydrogen peroxide
Oxalic acid
Potassium ferricyanide
Periodic acid
Propylene glycol
Acetic acid
Sodium biosulfate
Sodium thiosulfate

40
Q

enumerate the carcinogenic propertie

A

Chromic acid
Aniline
Chloroform

41
Q

enumerate the toxic chemicals

A

ACCE GINS Meth

Aniline
Chromic acid
Chloroform
Ethylene glycol

Glutaraldehyde
Isopropanol
Nitric Acid
Sodium azide
Methanol

42
Q

enumerate the flammable and volatile chemicals

A

Ethanol
Isopentane

43
Q

enumerate the corrosive chemicals

A

SPOON MSS ZF

Sodium hydroxide
Potassium hydroxide
Osmium tetroxide
Oxalic acid
Nitric Acid

Mercuric chloride
Sodium hypochlorite
Sulfuric acid

Zinc chloride
Formic Acid

44
Q

enumerate chemicals handled under fume hood

A

Formic acid
Osmium tetroxide
Phenol

45
Q

enumerate the chemicals that can cause frostbite

A

Chilled Isopentane and Liquid Nitrogen

46
Q

enumerate the chemicals that can cause burns

A

Liquid nitrogen and oxalic acid

47
Q

enumerate the chemicals that are explosive

A

Picric acid, silver salts, sodium azide

48
Q

enumerate the oxidant chemicals

A

Potassium permanganate
Sodium hypochlorite

Histopath lect (10 decks)

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