A new OEC Technician asks you why the elderly are at higher risk for developing pneumonia than younger individuals. You inform him that the elderly are more susceptible to respiratory infections because of:
a. impaired swallowing of saliva.
b. decreased alveolar gas exchange.
c. a reduced cough reflex.
d. hardening of the major arteries.
Answer: c
Health Professions
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Positioning the arches too far forward in the focal trough, toward the tube head, will result in
A) the anterior teeth appearing blurred and diminished in width. B) the anterior teeth appearing blurred and magnified. C) an image that appears as an exaggerated smile. D) wide radiopacities superimposed over the anterior teeth.
Health Professions
Most circulating clotting proteins are synthesized by the:
A. heart B. liver C. kidneys D. bone marrow
Health Professions