ASCP Practice Questions – Histotechnology questions with answers

ASCP Practice Questions – |\ |\ |\ |\




Histotechnology questions with answers |\ |\ |\




This fixative does not fix or destroy carbohydrates, and it does
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not fix lipids. It penetrates very rapidly and leaves tissue very
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soft. It is added to many fixative mixtures because of its ability to
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fix nuclei. - CORRECT ANSWERS ✔✔Acetic acid
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Techniques using Schiff reagent, such as the periodic acid-Schiff
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(PAS) stain, cannot be used on __________ fixed tissues because
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false positive results will be obtained. - CORRECT ANSWERS
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✔✔Glutaraldehyde


This fixative is the smallest dialdehyde and is used in the textile
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industry for imparting wrinkle resistance and permanent press
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creases. It has replaced formaldehyde in some histopathology
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laboratories because it is much less toxic. - CORRECT ANSWERS |\ |\ |\ |\ |\ |\ |\ |\ |\ |\


✔✔Glyoxal


Today, _________ has/have found use not only in combination with
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formaldehyde for routine fixation, but as a substitute for mercury
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in the B-5 solution commonly used for the fixation of lymph node
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and bone marrow tissues - CORRECT ANSWERS ✔✔Zinc salts
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If unfixed tissue is to be held for several days or transported over
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a long distance then this transport medium is recommended. -
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CORRECT ANSWERS ✔✔Michel transport medium |\ |\ |\ |\

, Tissue processing is usually considered to include: - CORRECT
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ANSWERS ✔✔Dehydration, clearing, infiltration
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The most widely used clearing agent in histology today is: -
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CORRECT ANSWERS ✔✔Xylene |\ |\




This chelating agent binds calcium ions and is one method used
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for decalcifying tissues. - CORRECT ANSWERS
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✔✔Ethylenediaminetetraacetic acid (EDTA) |\ |\




This microscope is used for the examination of unstained
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specimens, especially unstained living cells, and allows almost
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transparent objects to be seen clearly. - CORRECT ANSWERS
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✔✔Phase-contrast microscope |\




This piece of equipment is a refrigerated chamber containing a
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microtome
that is used to cut frozen sections. - CORRECT ANSWERS
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✔✔Cryostat


OSHA defines ____________ as chemicals that may cause acute or
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chronic health effects in exposed employees. - CORRECT
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ANSWERS ✔✔Hazardous chemicals |\ |\




The lowest dose of a substance that will produce any toxic effect
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in humans when introduced by any route other than inhalation is
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the: - CORRECT ANSWERS ✔✔Toxic dose low
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