Fa

Question 1

simplest and most frequently used

Answer 1

DFS

Question 2

for the observation of the motility of trophozoites

Answer 2

0.85% NaCl

Question 3

doesn’t demonstrate glycogen vacuole and nuclei

Answer 3

0.85% NaCl

Question 4

cysts appear glistening and refractile

Answer 4

0.85% NaCl

Question 5

for protozoan cysts and helminth ova
kill the trophozoites and helminth larva

Answer 5

D’antonis solution/Lugol’s Iodine

Question 6

2 structures seen in cyst in D’antonis

Answer 6

Chromatodal bars and glycogen vacuole

Question 7

Uses of coverslip

Answer 7

1. to avoid drying of the preparation
2. to avoid fogging and contamination of objectives
3. to avoid rapid loss of the stain

Question 8

Appropriate for formed or semiformed stool

Answer 8

Kts

Question 9

For Emulsification of stool

Answer 9

Distilled water

Question 10

Clearing agent in kts

Answer 10

Glycerin

Question 11

Stain inkts

Answer 11

3% malachite green

Question 12

Coverslip in kts

Answer 12

Cellophane

Question 13

Clearing time of kts in room temp

Answer 13

1 hour

Question 14

Clearing time of kts in dry incubation

Answer 14

20-30mins

Question 15

Satisfactory for all kinds of helminth eggs

Answer 15

Kts

Question 16

For large scale examination

Answer 16

Kts

Question 17

Unsuitable for protozoan cysts and trophozoites

Answer 17

Kts

Question 18

Detection of small number of parasites not detected using DFS

Answer 18

Concentration techniques

Question 19

Protozoan cysts, helminth eggs and larvae

Answer 19

Sedimentation method

Question 20

Less efficient than flotation: because protozoan cysts and
many eggs may not be seek.

Answer 20

Sedimentation method

Question 21

Concentrate eggs, larvae and cysts of parasites, operculated and schistosomal eggs

Answer 21

Formalin-ether technique

Question 22

Preservative and fixative

Answer 22

Formalin

Question 23

How many minutes in formalin before centrifugation

Question 24

Dissolves lipids and other colloidal material

Answer 24

Ether

Question 25

Material can be examined hours or even days after preparation

Answer 25

FECT

Question 26

Not applicable for protozoan cysts

Answer 26

Acid ether sedimentation

Question 27

we may observe helminth eggs and larvae

Answer 27

Acid ether sedimentation

Question 28

Cleraing agent in acid ether sedimentation

Question 29

Not recommended because it is time consuming

Answer 29

Simple sedimentation

Question 30

For blood only to detect microfilariae

Answer 30

Knott concentration technique

Question 31

Helminths eggs and protozoan cysts may either float or sink depending on their specific gravitate

Answer 31

Flotation technique

Question 32

Superior than sedimentation

Answer 32

Flotation method

Question 33

Helminth eggs, protozoan cysts and larvae specific gravity

Answer 33

1.05-1.15

Question 34

Chemical solutions specific gravity

Answer 34

1.12 to 1.21

Question 35

Optimal time for examination of flotation method

Answer 35

5-20 minutes

Question 36

Zinc sulfate centrifugal flotation technique specific gravity

Answer 36

1.18

Question 37

80% effective in detecting eggs and cysts in light infections

Answer 37

ZINC SULFATE CENTRIFUGAL FLOTATION TECHNIQUE

Question 38

Hookworm SG

Answer 38

1.005

Question 39

Ascaris (fertile) sg

Answer 39

1.110

Question 40

Trichuris sg

Answer 40

1.150

Question 41

Giardia sg

Answer 41

1.060

Question 42

E. Histolytica sg

Answer 42

1.070

Question 43

Laboratory test for occult blood

Answer 43

Benzidine Guiaic Hematest

Question 44

Meat free diet for how many days prior to occult blood test

Answer 44

3-5 days

Question 45

False pos or false neg myoglobin in meat

Answer 45

False pos

Question 46

False pos or false neg vitamin c

Answer 46

False neg

Question 47

blood which is not visible to the naked eye and can only be detected by chemical means only

Answer 47

Occult blood

Question 48

due to hemorrhagic disorder, ulcers and contamination

Answer 48

Rbc

Question 49

PRESENT IN BACTERIAL OR PARASITIC INFECTION

Answer 49

Macrophages

Question 50

indicative of inflammation

Answer 50

Wbc

Question 51

Fungi in occult blood

Answer 51

Candida spp

Question 52

Pseudoparasite in occult blood

Answer 52

Plant cells, pollen grains and spores

Question 53

Increased during inflammation of the lower bowel

Answer 53

Epithelial cells

Question 54

Contaminated by urine in occult blood

Answer 54

Calcium oxalate and triple phosphate crystls

Question 55

Similar to helminth ova in occult blood

Answer 55

Plant fibers Root hair Animal cells

Question 56

Mistaken by trichuris trichuria or karvae

Answer 56

Charcot latyden crystals

Question 57

Color of glycogen vacuole

Answer 57

Mahigany brown

Question 58

Uses specific gravity and centrifugation

Answer 58

Sedimentation method