All of the following are true of positive beam limitation (PBL) EXCEPT:

a. PBL automatically collimates the beam.
b. PBL senses the size and orientation of the receptor.
c. PBL is possible with portable radiography.
d. PBL may be overridden by the radiographer in select instances.


c. PBL is possible with portable radiography.

Health Professions

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A decrease in the H+ ion concentration [H+] of the blood caused by a low PaCO2 best describes which of the following?

a. Metabolic acidosis b. Metabolic alkalosis c. Respiratory acidosis d. Respiratory alkalosis

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Surfactant is primarily composed of

a. proteins. b. phospholipids. c. neutral lipids. d. water.

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An appendicular bony structure made up of the humerus, scapula, and clavicle bones that moves with the arms

What will be an ideal response?

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At the end of each year, Form ____ must be given to all employees so those employees can submit their federal taxes

a. W-2 b. W-4 c. 940 d. 941

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