Radt 142 - Study guides, Class notes & Summaries

RADT 142 unit 1 Exam Questions and Answers Filtration - Answer-Metal filters absorb low-energy x-rays before they reach the patient. These x-rays have little diagnostic value. Collimation - Answer-Restricts the useful x-ray beam to the part of the body to be imaged. Intensifying screens - Answer-Changes x-ray energy to light energy so that x-ray images can be better visualized. Protective apparel - Answer-Lead-impregnated material is used to make gloves and aprons worn by radiologists ...

RADT 142 Exam 1 Questions with Correct Answers Radiation Protection - Answer-Shielding, filtration, time, distance, collocation, and gonadal. Law of conversation of energy - Answer-energy cannot be create nor destroy but can be transformed from one to another Heat random disorder of molecules - Answer-transfer of heat energy by direct contact Nuclear energy - Answer-Energy contained in the center of the atoms Electromagnetic energy - Answer-A form of energy that travels through sp...

RADT 142 Exam Questions with Answers Radiation Filtration - Answer-Filters out lower energy radiation Collimation - Answer-The restriction of the size and shape of the x-ray beam in order to reduce patient exposure. Intensifying Screens - Answer-sheets of luminescent phosphor crystals bound together and mounted on a cardboard or plastic base. Radiation Injuries - Answer-Erythema, alopecia, anemia and cataract Matter is - Answer-anything that has mass and occupies space Energy is ...

RADT 142 Unit 1 Test Questions and Answers Radiation injuries - Answer-Erythema, alopecia, anemia and cataract Electrical Energy - Answer-Work that can be done when an electron moves through an electrical potential difference. Cm in 1 inch - Answer-2.54 3 Cardinal Principles of Radiation Protection - Answer-Time, distance and shielding Collimation - Answer-Restriction to certain body parts Filtration - Answer-Metal filters that absorb radiation Radiation injuries - Answer-Eryt...

RADT 142 Quiz 1 Questions with Correct Answers Radiation injuries - Answer-- erythema- skin red - alopecia- hair falling out - anemia- low blood cells - cataract- loss of vision Matter & energy - Answer-Matter- anything that takes up space and has mass four physical states: solid, liquid, gas, plasm energy- ability to do work history of x-ray - Answer-- discovered: november 8th, 1895 - Wilhelm Roentgen - used a Crookes tube accidentally found a sihloette between plate with barium...

RADT 142 Test Questions and Answers which modalities use ionizing radiation - Answer-computed tomography angiography mammography radiation therapy What is radiation? - Answer-transfer of energy through space in the form of rays, waves, or particles which modalities do not use ionizing radiation - Answer-nuclear medicine MRI ultrasound (sonography) which modality uses magnetic and radio waves - Answer-MRI Which modality uses megavolts instead of kilovolts - Answer-Radiatio...

RADT 142 unit 5 Test Questions and Answers Which scatter radiation interacts with moderate x-rays, outer shell electrons, and photon changes direction? - Answer-Compton/modified Which type of scatter radiation is responsible for the majority of scatter radiation reaching the image receptor (IR)? - Answer-compton/modified Compton/modified - Answer-photon is directed back towards the source (backscatter). - majority of scatter radiation reaching IR - occupational exposure during fluo...

RADT 142 Review Test Questions with Answers What is the smallest subdivision of a compound that maintains the same characteristics of that compound? - Answer-molecules What is the smallest portion of an element? - Answer-atom Two or more different atoms (elements)? - Answer-compound and molecule Two or more same atoms - Answer-Molecules What is a combination of different substances? - Answer-mixture what is the difference between x-rays and gamma rays? - Answer-they are the same ...

RADT 142 Essential Concepts Test Questions and Answers Newton's 1st Law of Motion - Answer-(law of inertia) a body will remain at rest or will continue to move with constant velocity in a straight line unless acted on by an external force Newton's 2nd Law of Motion - Answer-the force (F) that acts on an object is equal to the mass (m) of the object multiplied by the acceleration (a) produced Newton's 3rd Law of Motion - Answer-Action/reaction - for every action, there is an equal and o...

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