NBE Study Guide Chemistry Questions Flashcards

1
Q

A liquid containing a dissolved substance or substances is a(n):

  • Salt
  • Acid
  • Nitrite
  • Solution
A

Solution

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2
Q

When used in arterial formuations eosine, ponceau red, and erythosine are examples of:

  • Dyes
  • Buffers
  • Vehicles
  • Deodorants
A

Dyes

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3
Q

A substance that prevents infection by killing bacteria is classified as a:

  • Salt
  • Soap
  • Water
  • Disinfectant
A

Disinfectant

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4
Q

The number of oxygen atoms in the formula 2Al(OH)3 is:

  • 1
  • 2
  • 3
  • 6
A

6

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5
Q

A 40% by volume solution of formaldehyde is called:

  • Methanol
  • Ethanol
  • Formalin
  • Tincture
A

Formalin

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6
Q

The chemical group that makes an alcohol molecule soluble in water and useful to the embalmer is:

  • NH3
  • OH
  • CO3
  • PO4
A

OH

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7
Q

According to OSHA, the proper way to neutralize a formaldehyde spill is to:

  • Add ammonia, then wipe up
  • Dilute with water
  • Clean up with soap and water
  • Use a wet vacuum
A

Add Ammonia, Then Wipe up

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8
Q

Formaldehyde is an ingredient of embalming fluid used to:

  • Retain water
  • Preserve tissue
  • Prevent coagulation
  • Mask odors
A

Preserve Tissue

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9
Q

An amine produced during putrefaction is:

  • Urotropin
  • Glycine
  • Putrescine
  • Methanal
A

Putrescine

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10
Q

Formaldehyde in a dry powdered form is also known as:

  • Alum
  • Urotropin
  • Perlite
  • Paraformaldehyde
A

Paraformaldehyde

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11
Q

A substance that is capable of bringing about a reduction in the surface tension of a fluid.

  • Surfactant
  • Buffer
  • Humectant
  • Acid
A

Surfactant

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12
Q

Which of the following are properties of formaldehyde?

  1. It is a colorless gas
  2. It is quite soluble in water
  3. It combines with water to form methylene glycol
  4. It is easily oxidized to form acetic acid
A

1,2 and 3

(It is a colorless gas, it is quite soluble in water, it combines with water for form methylene glycol)

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13
Q

Formaldehyde reacts with ammonia to form:

  • Paraformaldehyde
  • Urea
  • Urotropin
  • Glyoxal
A

Urotropin

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14
Q

In comparing cavity fluid to arterial fluid, the cavity fluid will have:

  • A lower index
  • No active dyes
  • No modifying agents
  • No surfactants or vehicles
A

No Active Dyes

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15
Q

Polymerization of formaldehyde is inhibited by the addition of:

  • Distilled water
  • Methyl alcohol
  • Aluminum chloride
  • Magnesium chloride
A

Methyl Alcohol

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16
Q

Reodorants are used in embalming fluids as:

  • Wetting agents
  • Masking agents
  • Humectants
  • Disinfectants
A

Masking Agents

17
Q

Phenol is used in embalming fluids as a:

  • Preservative
  • Humectant
  • Surfactant
  • Buffer
A

Preservative

18
Q

Sodium citrate is used in embalming fluids as a(n):

  • Surfactant
  • Humectant
  • Anticoagulant
  • Preservative
A

Anticoagulant

19
Q

HCHO

A

Formaldehyde

20
Q

pH

A

Potential of Hydrogen

21
Q

A factor that indicates the use of a MORE dilute arterial solution is:

  • Thick skin
  • Tough skin
  • Emaciation
  • Hydration
A

Emaciation

22
Q

How many ounces of 32-index fluid are needed to make 2 gallons of a 2% fluid dilution?

  • 8
  • 12
  • 14
  • 16
A

16 ounces

23
Q

Extremely hard water shoud NOT be used in diluting embalming fluid because it:

  • Causes dehydration
  • Prevents oxidation
  • Results in blood coagulation
  • Prevents permeation of the fluids
A

Results in Blood Coagulation

24
Q

Chemicals which have the capability of displacing unpleasant odors are:

  • Humectants
  • Deodorants
  • Surfactants
  • Disinfectants
A

Deodorants

25
Q

Which of the following is characteristic of a jaundice fluid?

  • No bleach content
  • No counter staining
  • Low formaldehyde content
  • High formaldehyde content
A

Low Formaldehyde Content

26
Q

To facilitate the penetration of preservatives during surface embalming, the surface gels may contain:

  • Phenol
  • Sodium citrate
  • Sodium lauryl sulfate
  • Quaternary ammonium compounds
A

Sodium Lauryl Sulfate

27
Q

AL

A

Action Level

28
Q

BCME

A

Bischloromethyl Ether

29
Q

mCi

A

Millicurie