Dyes Flashcards
When is dissolved gives color to the embalming solution?
Dye AKA Coloring Agent
What are the 2 Categories of Dyes?
Active Dyes/Staining Dyes
Passive Dyes/Non-Staining Dyes
Active Dyes/ Staining Dyes definition?
Dyes that impart a color pigmentation to the body and or stain the body tissue cells
What are the types of Active Dyes?
Cosmetic Fluid
Counter Staining Compound
Tracer Dyes
Embalming fluid that contains dyes and coloring agents that restore a more natural skin tone
Cosmetic Fluids aka Cosmetic Dyes
The dye that helps to cover internal discolorations such as jaundice
Counter staining compound AKA Counter staining dye
Why does Bilirubin convert to Biliverdin in jaundice cases?
- High formaldehyde index
2. Acidic nature of the formaldehyde
What are the ways to treat Jaundice Discoloration?
- Large amounts of pre injection
- Counter staining dyes
- External cosmetics
- Torchiere Lamps
Torchiere Lamps?
Provides indirect light that mitigates the jaundice discolorations
What is the primary goal in jaundice cases?
Preservation
Sclera?
The white portion of the eye where jaundice could be first discovered
What is a Tracer Dye?
Active dyes used as cosmetic dyes that have the added advantage of giving a visible surface indication of fluid DISTRIBUTION
What are the characteristics of an embalming fluid dye?
- Must stain the tisue cells
- Must highly diffuse and light fast
- It must not be altered by pathological body products
- It must maintain its original color under reasonable variations of arteriral fluid and tissue pH
- Must possess a color comparable to that of the living tissue
Do Inactive dyes produce a staining effect?
No they have no other purpose than to add color and eye appeal to the fluid
Active Dyes
Cosmetic Stains tht actually dyes the tissue cells and aids in the restoration of a normal life-like color.
A purplish red powder prepared from lichens by maceration in dilute ammonia and caustic soda?
Cudbear
What is Carmine?
Is an aluminum and calcium salt of carminic acid
A red coloring matter consisting of the dried bodies of the female insect codlus cacti
Cochineal
What are Synthetic Dyes?
Dyes of alkali metal salts that have been reacted with coal tar compounds 90%
What is Amaranth?
The member of AZO family is a suspected human carcinogen; Suspected human carcinogen
Eosin definition of the chemical definition?
Tetrabromofluorescin
Is derived from bromine and is red in color
Highly concentrated; only a few drops needed
Erythrosine Definition and Chemical equation
Known chemically as sodium slats of iodeosin
Brown powder
Ponceau
Red non flourescent dye obtained from napthlene
What is the AKA of Dyes?
Coloring Agents
What are the three components of color?
Carotene - Yellow
Hemoglobin - Red
Melanin - Brown
What are the 3 Cs of Active Dyes?
Also the 3 Natural Dyes
Cudbear
Carmine
Cochineal
What color is non-passive dye?
Blue
What only contains inactive dyes?
Preservative Cells
Do dyes give an example of distribution or diffusion?
Both
What are synthetic dyes derived from?
Hydrocarbons
What is the most commonly used dye?
Synthetic
Where should the embalming inject a synthetic dye?
From the femoral artery
What is ponceau derived from?
Napthlene
Is Ponceau active or inactive?
Inactive
What is the popular and most common active dye?
Eosin
What is coloring agents a blend of?
Dyes
Coal tar derivatives
What are the normal pH of coloring agents?
7.3 - 7.4
