Chapter 17 The Pathology Problem
The medical science that pertains to all aspects of disease, including the structural and
functional changes caused by the disease. correct answers Pathology
A disease that causes increased thickness and effective atomic number are called
_________________ conditions. correct answers Additive
Additive conditions require an _____________ in technical factors. correct answers
Increase
True/False: Fewer photons will be absorbed when a patient has an additive condition.
correct answers False, more photons will be absorbed
IR exposure will ____________ as the extent of an additive disease increases correct
answers Decrease
Diseases that require a decrease in technical factors, and result in decreased patient
thickness/density are called? correct answers Destructive conditions
With a destructive condition IR exposure _______________ as the extent of the
disease increases. correct answers Increases
A small localized tumor in the lung, or kidney stone would require what change in
technical factors? correct answers NONE
A minimal change of ______to______ percent is needed to produce a visible change in
overall IR exposure. correct answers 25-50%
Pneumonia causes air filled tissue to fill with ___________, which will absorb _______
radiation than air. correct answers Fluid
More
Why should radiographers have a good understanding of pathological conditions?
correct answers To properly adjust technical factors when faced with certain
radiographic symptoms on a radiograph
Additive/Destructive:
a) congestive heart failure
b) ascites
c) pneumothorax