LRA 110 FINAL EXAM AND CORRECT ANS

LRA 110 FINAL EXAM AND CORRECT ANS




November 8, 1895 by Wilhelm Conrad Roentgen - CORRECT ANS✔✔x rays were
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discovered ?
b b




His wife's hand - CORRECT ANS✔✔the first radiograph produced by Dr. Roentgen was
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of
b




acute radiodermatitis - CORRECT ANS✔✔radiation burn resulting from excessive
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exposure to xrays
b b b




common among early patients and operators of xray equipment
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a delayed reaction to excesssive xray exposure
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power - CORRECT ANS✔✔Watt is the unit of measure of
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potential energy - CORRECT ANS✔✔energy in a stored state is
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kinetic energy - CORRECT ANS✔✔energy being expended?
b b b b b b




potential energy or kinetic energy b b b b




roentgen - CORRECT ANS✔✔the standard radiologic unit that quantifies radiation
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intensity is the
b b b




rad - CORRECT ANS✔✔the standard radiologic unit the quantifies the biological effect of
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radiation on humans and animals is the
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rem - CORRECT ANS✔✔the standard radiologic unit that quantifies occupational
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exposure or dose equivalent is the
b b b b b b




gray - CORRECT ANS✔✔the _______ is the SI unit equivalent to the rad
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Sivert - CORRECT ANS✔✔the ___________ is the SI unit equivalent to the rem
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sivert - CORRECT ANS✔✔the SI radiologic unit that addresses the different biological
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effects of different types of ionizing radiation is the
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, anode - CORRECT ANS✔✔the positive electrode of the xray tube is the
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cathode - CORRECT ANS✔✔the negative electrode of the xray tube is the
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collimator - CORRECT ANS✔✔the device that restricts the xray beam to the area of
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interest is the
b b b




collimator - CORRECT ANS✔✔lead shutters are part of the
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bucky assembly - CORRECT ANS✔✔the device that is located just under the xray table
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and holds the image receptor in place is the
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wall unit - CORRECT ANS✔✔upright radiographic examinations can easily be done with
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a
b




control panel - CORRECT ANS✔✔the electricity applied to the tube during xray
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production is controlled at the
b b b b b




ALARA (as low as reasonably achievable) - CORRECT ANS✔✔what principle
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articulates the radiographers responsibility to minimize radiation exposure to the patient
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oneself and others?
b b b




collimation - CORRECT ANS✔✔which of the following is NOT a cardinal principle for
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bminimizing radiation dose? b b




distance
shielding
collimaiton
time

decrease collimation - CORRECT ANS✔✔which of the following is NOT one of the
b b b b b b b b b b b b




btools/tasks or radiation? b b




decrease collimation b




increase kvp and decrease mAs b b b b




bavoid duplicate exams
b b




true - CORRECT ANS✔✔mass does not change with gravitational force?
b b b b b b b b b




true or false
b b




false - CORRECT ANS✔✔screening for pregnancy is not a task the radiographer would
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bperfom before a radiographic procedure on a female paient
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true or false
b b