All the following are true except:
a. Increasing the OID will always result in a noticeable density loss.
b. Increasing the OID will reduce the amount of scatter radiation reaching the IR at kVp levels above 60.
c. Increasing the OID when imaging an anatomic structure that creates significant scatter radiation will require the mAs to be increased 10% for every centimeter of OID elevation.
d. At tube potentials below 60 kVp, an increase in the OID has little if any effect on density.
ANS: A
You might also like to view...
How does nitroglycerin decrease the level of chest pain that a patient experiences?
A) It constricts the blood vessels, forcing the toxic lactic acid out of the heart. B) It constricts the blood vessels, forcing more blood into the heart muscle. C) It dilates the blood vessels, allowing more blood flow to wash away the toxic lactic acid. D) It dilates the blood vessels, allowing more blood to enter the heart muscle.
To do well on a written test, what is needed?
a. Good penmanship b. Good eyesight c. Good hearing d. Good study habits
The epithelial cells found in urine and pictured here are ________ cells.
Which part(s) of the tibia articulate(s) with the talus?
A) inferior surface B) medial surface of the medial malleolus C) a and b D) Neither a nor b