Study
Questions for Biomedical Tracers
Radiation and
Radiotracers:
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Describe the way(s) in which matter may undergo
radioactive decay.
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Define the differences between x-rays and
gamma rays.
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What is a half life and how is it computed?
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What are the usual units of radiation measurement
and how are they interrelated?
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What are the usual methods of minimizing radiation
exposure: to particulate radiation; to electromagnetic radiation?
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What are the dangers of exposure to radiation,
how do they arise, and is there a root cause for such damage?
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What methods are normally employed to quantify
radiation? What instruments are used to measure what types of radioisotope?
Why?
Antibodies, Immunoassays,
and Immunolocalization:
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What are the major features of the structure
of gamma class immunoglobulins and how might these be used in employing
immunoglobulins as analytical reagents?
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What is the process whereby immunoglobulins
are generated by the body? How is this manipulated in vaccination
and in the production of monoclonal antibodies?
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What are the major features of haptens and
antigens? What limitations do haptens impose on analytical and localization
studies?
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Compare and contrast competitive and noncompetitive
immunoassays.
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What kinds of labels can be used as markers
for competitive immunoassays? For noncompetitive assays?
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What are the advantages or disadvantages of
using a kinetic approach versus an endpoint approach to evaluation of enzyme
immunoassay results? Are these opportunities or limits encountered
elsewhere?
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What are the key features of assay validation
and quality assurance? How are these features measured and evaluated?
Could these approaches be used in other contexts?
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Are there any other molecular interaction
systems that share enough major features with antibody-antigen interactions
to allow them to be employed in similar ways in qualitative, quantitative,
and localization studies? Is there a lesson for other tracing methods?
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What limitations are involved in using antibodies
to localize antigenic determinants on preserved tissues or in cell cultures?
Can these be overcome? If so, how?
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What is the role of standards in immunoanalyses?
How are these generated and/or employed? Is there a lesson for biomedical
tracing in general?