CLINICAL PARASITOGY

Question 1

Moves the microscope stage the greatest vertical distance from objective.

Answer 1

BD (Coarse adjustment knob)

Question 2

2.Corrects for any difference in vision between the viewer’s eyes.

Answer 2

B (DIOPTER RING)

Question 3

3.Gathers and focuses light from the illuminator onto the specimen being viewed.

Answer 3

E (CONDENSER)

Question 4

4.Modifies the wavelength of the observation light used.

Answer 4

AC (FILTER)

Question 5

5.Enables quick change of objectives.

Answer 5

C (REVOLVING NOSEPIECE)

Question 6

6.Moves the slide forward and backward.

Answer 6

BE (Y-AXIS MECHANICAL STAGE KNOB)

Question 7

7.Controls the amount of light that illuminates the specimen.

Answer 7

AB (IRIS DIAPHRAGM)

Question 8

8.Produces the primary enlarged specimen image.

Answer 8

D (OBJECTIVES)

Question 9

9.Used when focusing image under high power objective.

Answer 9

AD (FINE ADJUSTMENT)

Question 10

10.An adjustment that determines how close the objective lens can get to the slide.

Answer 10

BC (PRE-FOCUSING KNOB)

Question 11

Supports the observation tube:

Answer 11

ARM/LIMB

Question 12

Holds the slide specimen in place:

Answer 12

MECHANICAL STAGE/ STAGE / STAGE CLIPS

Question 13

This refers to the number of times the image of an object is enlarged.

Answer 13

MAGNIFYING POWER

Question 14

hat is the Refractive Index of a glass slide?

Answer 14

1.52

Question 15

Optimal distance from the lens objective to the coverslip. It decreases as the magnification and NA increases.

Answer 15

WORKING DISTANCE

Question 16

The ability of an optical system to retain focus even when objective magnification is changed.

Answer 16

PARFOCALITY

Question 17

Enables the user to switch between objective magnification and keep the specimen still within the field of view.

Answer 17

PARCENTRALITY

Question 18

When carrying the microscope, we hold around the hole of the arm and it is okay to carry two microscopes at a time.

Answer 18

FALSE, (ONE)

Question 19

The higher the Numerical Aperture, the greater the Resolution.

Answer 19

TRUE

Question 20

The final inverted image formed by the compound microscope is a real image of the virtual image of the object.

Answer 20

FALSE, (Virtual Image), (Real Image)

Question 21

Laxatives such as mineral oil, castor oil, and suppositoriesmay cause the formation of crystalline residues that deter proper parasite identification.

Answer 21

FALSE

Question 22

One maydirectly scoop up stool from the toilet bowland submit it for examination.

Answer 22

medications

Question 23

(?) slow down the motility of trophozoites and distort the morphology of parasites.

Answer 23

Laxatives

Question 24

One maydirectly scoop up stool from the toilet bowland submit it for examination.

Answer 24

False

Question 25

Fecal samples should be collected without (?) with toilet water, urine and soil

Answer 25

contamination

Question 26

Ideally, asingle specimenis sufficient to conclude whether or not a patient has intestinal parasitosis.

Answer 26

False

Question 27

For routine examination, a series of [?] (2 normal; 1 catharsis) is considered minimum for adequate examination. Which is collected every other day or within a 7- 10 day period.

Answer 27

3 fecal samples

Question 28

After treatment, a patient isno longer required to submit a stool samplefor examination.

Answer 28

False

Question 29

It is required to ensure that the treatment was effective. Follow the recommended 3 series collection. But take note if the patient was infected with protozoans or aTaeniainfection.

Answer 29

( Refer to module for the delay in testing after therapy)

Question 30

When delay in examination or long transit is expected,stool samples need notto be preserved.

Answer 30

False

Question 31

We need to preserve the integrity of the specimen to maintain the parasites(if present) morphology for (?).

Answer 31

accurate identification

Question 32

The purpose of proper specimen collection is:

Answer 32

(All of the above)

Question 33

When infected with a protozoan, how many weeks after should the patient go in for a stool exam?

Answer 33

(3-4 weeks)

Question 34

The Merthiolate Iodine Formaldehyde stain, contains the following components, EXCEPT:

Answer 34

(2mL Acetic acid)

Question 35

When Barium has been ingested, how many days after should the patient go in for a stool exam?

Answer 35

(7-10 days)

Question 36

When a patient is suspected of having intestinal amoebiasis, what is the recommended number of specimens to be collected?

Answer 36

6 specimens (3 normal bowel movement collected; 3 after catharsis/purge) within a 14 day period

Question 37

All of the following preservatives has a long shelf life, EXCEPT

Answer 37

(None of the above)

Question 38

Which of the following is NOTsuitable for staining with Trichrome?

Answer 38

(MIF)