Histopath - Infiltration

Paraffin Wax

What is the simplest, most common, and best embedding medium?

55-60°C

What is the ideal temperature range for a paraffin oven or incubator?

Hematoxylin

Which of the following is NOT a type of tissue impregnation?

Soap

What substance is added to water-soluble waxes like Carbowax to reduce tissue distortion?

Vacuum embedding

Which embedding method is recommended for urgent biopsies?

Cedarwood oil

What is the recommended clearing agent for delicate tissues?

Produces very thin sections

What is a disadvantage of celloidin impregnation?

56-57°C

What is the melting point of Paraplast?

Bioloid

Which of the following is used for embedding eyes?

Requires long processing time

What is the main disadvantage of wet celloidin impregnation?

g. Uses vacuum oven

Matching Type:

Wax impregnation under vacuum

e. 2-5°C above melting point

Matching type:

Paraffin wax processing

c. Used for histochemical studies

Matching type:

Gelatin impregnation

b. Helps retain cellular details

Matching type:

Water-soluble wax

d. Uses nitrocellulose

Matching type:

Celloidin method

h. Combines celloidin and paraffin wax

Matching type:

Double embedding

Benzoyl peroxide as catalyst

Matching type:

Plastic resin embedding

a. Rapid embedding with disposable molds

Matching type:

Tissue Tek system

j. Produces even blocks

Matching type:

Leuckhart's embedding mold

i. Uses interlocking metal plates

Matching type:

Compound embedding unit

false

true or false:

Overheated paraffin wax makes the specimen more flexible.

true

true or false:

Xylene is a commonly used clearing agent.

false

true or false:

The main disadvantage of vacuum embedding is excessive shrinkage.

true

true or false:

Paraffin wax can be stored indefinitely.

false

true or false

Cedarwood oil is easily removed from tissues.

true

true or false:

The Tissue Tek system has both warm and cold plates for embedding.

false

true or false:

Gelatin impregnation is recommended for neurological tissues.

false

true or false:

Epoxy resins are commonly used for routine histopathology.

false

true or false:

Paper boats are a fast and convenient embedding method.

true

true or false:

Incorrect orientation of tissue in a mold may result in loss of diagnostically important elements.