Each of the following is an advantage of digital imaging except one. Which one is the exception?
A) It reduces radiation over film-based radiography.
B) It eliminates the need for the darkroom and processing chemistry.
C) It allows the use of pointed cones without radiation hazards.
D) It avoids the need for disposal of hazardous materials such as lead foils from film packets.
C
Explanation: A) Pointed cones are no longer acceptable because x-rays are scattered through contact with the material of pointed cones.
B) Pointed cones are no longer acceptable because x-rays are scattered through contact with the material of pointed cones.
C) Pointed cones are no longer acceptable because x-rays are scattered through contact with the material of pointed cones.
D) Pointed cones are no longer acceptable because x-rays are scattered through contact with the material of pointed cones.
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The presence of insulin in the bloodstream will:
A) assist glucose to enter the cells. B) allow for the production of glucose. C) stimulate the CNS activity. D) inhibit the use of glucose by the cells.
How would the body respond to a systemic capillary pressure of 22 mm Hg?
a. In response to the elevated pressure, fluid would be absorbed from the interstitial spaces to increase blood volume b. 22 mm Hg is the normal systemic capillary prressure so no changes in blood volume would occur c. In response to the elevated pressure, fluid would leak into the tissue spaces lowering the blood volume d. In response to the decreased pressure, fluid would be absorbed from the interstitial spaces to increase blood volume