Metallic Fixatives

Question 1

permits brilliant staining of nuclear and connective tissue fibers

Answer 1

Zenker’s Solution

Question 2

fixes connective tissue mucin

Answer 2

lead fixatives

Question 3

good fixative for connective tissue, excellent for preserving glycogen, and extracts, CHONS lipids

Answer 3

picric acid

Question 4

for preserving soft and delicate structures (e.g., endometrial curettings).

Answer 4

Gendre’s solution

Question 5

for bone marrow, extramedullary hematopoiesis and intercalated discs of cardiac muscle

Answer 5

Helly’s Solution (zenker-formol)

Question 6

provides superior results in immunostaining of biogenic and polypeptide hormones

Answer 6

picric acid

Question 7

Chromic Acid used in what percent solution

Answer 7

1-2% aqueous solution

Question 8

recommended for the demonstration of chromatin, mitochondria, mitotic figures, Golgi bodies, RBC and colloidcontaining tissues.

Answer 8

Regaud’s (Muller’s) Fluid

Question 9

recommended for trichrome staining

Answer 9

Zenker’s Solution

Question 10

tissues fixed with mercuric chloride containing compounds produce black precipitates except?

Answer 10

Haidenhein’s susa

Question 11

fixation of hematopoietic, bone marrow biopsies and lymphoid tissue, commonly used in bone marrow biopsies

Answer 11

Lillie’s B-5 Fixative

Question 12

Potassium Dichromate used in what percent solution

Answer 12

3% aqueous solution

Question 13

for congested specimens

Answer 13

Zenker’s Solution

Question 14

may act as a mordant for special staining techniques

Answer 14

Zenker’s Solution

Question 15

precipitates all proteins and adequately preserves carbohydrates

Answer 15

Chromic Acid

Question 16

routine fixative of choice for preservation of cell detail in tissue photography

Answer 16

Mercuric Chloride

Question 17

fixation of embryos and pituitary biopsies

Answer 17

Bouin’s Solution

Question 18

for gastro-intestinal tract specimens and fixation of endocrine tissues

Answer 18

Hollande’s Solution

Question 19

best application of Mercuric Chloride

Answer 19

fixation of hematopoietic and reticuloendothelial tissues.

Question 20

fixes but does not precipitate cytoplasmic structures, preserves lipids and mitochondria

Answer 20

Potassium Dichromate

Question 21

an alcoholic Bouin’s solution

Answer 21

Gendre’s solution

Question 22

color of picric acid

Answer 22

yellow

Question 23

recommended mainly for tumor biopsies of the skin

Answer 23

Heidenhain’s SuSa Solution

Question 24

recommended for acid mucopolysaccharides

Answer 24

lead fixatives

Question 25

excellent cytologic fixative

Answer 25

Heidenhain’s SuSa Solution

Question 26

an explosive hazard in dry form, thus sold in aqueous state state

Answer 26

picric acid

Question 27

for study of early degenerative processes and tissue necrosis

Answer 27

Orth’s Fluid

Question 28

lead fixatives is used in what percent solution

Answer 28

used in 4% aqueous solution of basic lead acetate

Question 29

most common metallic fixative

Answer 29

Mercuric Chloride

Question 30

demonstrates rickettsiae and other bacteria

Answer 30

preserves myelin