Care Of Microscope And Slides

Question 1

Do keep the microscope covered with a____/_____ when it is not in use

Answer 1

clean plastic or cloth cover

Question 2

Do take special care to protect the microscope from____ in hot dry periods.

Answer 2

dust

Question 3

Do take extra special care to protect the microscope lenses and prisms from______ in hot humid periods.

Answer 3

fungal growths

Question 4

a. Keeping the microscope in an_____ room when this is possible.

b. Storing the microscope in a special______ room.

c. Connecting a number of ___/____watt bulbs inside a cupboard with tightly fitting doors.

d. Placing a____-watt bulb in the individual microscope box which then acts as warm cupboard.

e. In areas without electricity, placing a shelf to hold the microscope box about _____ over the chimney of the gas or kerosene operated refrigerator or freezer, this keeps it sufficiently dry to protect lenses from fungus.

Answer 4

air conditioned

dehumidified

15 or 25

15

30 cm

Question 5

Do clean the immersion oil from the immersion objective everyday; use a soft cloth clampened with____ and polish with a clean_____ cloth.

Answer 5

xylene

lint free

Question 6

Do clean oculars with a

Answer 6

soft, lint free cloth or lens tissue

Question 7

Do use the microscope _____fitted at the base of the microscope box to keep the microscope from being damaged while in transit.

Answer 7

retaining screw

Question 8

Do quote the_____ number and, if possible, the ____ and ____number when ordering replacement parts.

Answer 8

model

instrument and part

Question 9

Don’t use the tissue or cloth used for the ______objective to clean the oculars.

Answer 9

oil-immersion

Question 10

Don’t use_____ to clean painted surfaces of the microscope.

Answer 10

alcohol

Question 11

Don’t_____ or try to clean parts of the microscope difficult to reach unless you have been trained to do so.

Answer 11

dismantle

Question 12

Don’t leave the_____ empty; use the appropriate cover or some sticking plaster to cover the empty port.

Answer 12

lens ports

Question 13

Don’t exchange lenses from microscopes of different______, even some models by the same______ have different specifications.

Answer 13

manufacturer

Question 14

The availability of clean, good quality glass slides for the preparation of______ specimens for microscopic examination must be emphasized.

Answer 14

blood

Question 15

All slides must be scrupulously clean and free from____/_____

This will prevent most of the_____ which confuse_____ diagnosis and will avoid the detachment and washing away of thick blood films during staining process.

Answer 15

grease or moisture

artifacts

malaria

Question 16

Reject defective materials such as:

Answer 16

1. Slides with a iridescent bloom or frosted appearance;
2. Imperfectly cleaned slides, whether new or old; and
3. Old slides with surface scratches or notched edge.

Question 17

It is prudent to clean all new slides (including commercially pre-cleaned slides) by soaking in_____+______ and placing them in running tap water, or several changes of clean water, for some hours.

Each slide should be wiped dry and polished with a dry, clean lint-free cloth. Always handle the cleaned slides by the______ to avoid finger or grease marks.

Answer 17

water with a reliable detergent

edges

Question 18

It is recommended that used slides be place in water containing a detergent solution.

When well-soaked, the slides should be removed and cleaned one by one with a pledget of gauze or cotton wool until all traces of the blood film and oil have been removed.

Then the slides should be transferred to a fresh solution of detergent and later to running water, or several changes of clean water, before drying with a clean cotton cloth.

Slightly______ slides which are considered unsuitable for blood films may still be usefully diverted to the entomological section for routine laboratory use.

Answer 18

scratched

Question 19

______should not be kept in the ambient climate of the humid tropics for more than a few weeks.

Otherwise, they will adhere to each other due to entrapped moisture and there will be loss of transparency due to “frosting.”

Slides, after cleaning, are best stored in a____ place or a____ air cabinet

Answer 19

Glass slides

dry; warm

Question 20

it is recommended that cleaned slides be stored in packages of____ which have been wrapped in thin paper and secured with cellulose adhesive tape or rubber bands so that they are ready fro use.

Packages of slides can be put in the original cardboard boxes or other suitable boxes, and insulated with (3) for mailing or transportation.

Answer 20

10

corrugated cardboard, polysterene or cotton wool