9.1 Artifacts

Question 1

Include vegetable cells and muscle fibers

a. Starch granules
b. Talcum powder particles
c. Air bubbles, oil droplets
d. Hair, fibers
e. Pollen grains
f. Fecal elements

Answer 1

f

Question 2

Due to rectovescial fistula

a. Starch granules
b. Talcum powder particles
c. Air bubbles, oil droplets
d. Hair, fibers
e. Pollen grains
f. Fecal elements

Answer 2

f

Question 3

A seasonal contaminant; may cause the microscopist to be out of focus

a. Starch granules
b. Talcum powder particles
c. Air bubbles, oil droplets
d. Hair, fibers
e. Pollen grains
f. Fecal elements

Answer 3

e

Question 4

Differentiated from casts by their square or pointed ends and refractility

a. Starch granules
b. Talcum powder particles
c. Air bubbles, oil droplets
d. Hair, fibers
e. Pollen grains
f. Fecal elements

Answer 4

d

Question 5

May be mistaken for RBCs

a. Starch granules
b. Talcum powder particles
c. Air bubbles, oil droplets
d. Hair, fibers
e. Pollen grains
f. Fecal elements

Answer 5

c

Question 6

Angular shapes from silica sources

a. Starch granules
b. Talcum powder particles
c. Air bubbles, oil droplets
d. Hair, fibers
e. Pollen grains
f. Fecal elements

Answer 6

b

Question 7

May prodcue maltese cross when polarized

a. Starch granules
b. Talcum powder particles
c. Air bubbles, oil droplets
d. Hair, fibers
e. Pollen grains
f. Fecal elements

Answer 7

a

Question 8

Under brightfield microscope, it has a characteristics of dimple center and cracks on its shell

a. Starch granules
b. Talcum powder particles
c. Air bubbles, oil droplets
d. Hair, fibers
e. Pollen grains
f. Fecal elements

Answer 8

a

Question 9

Commonly from powder in gloves

a. Starch granules
b. Talcum powder particles
c. Air bubbles, oil droplets
d. Hair, fibers
e. Pollen grains
f. Fecal elements

Answer 9

a