Ohio GXMO Study Guide Review Exam Questions With Verified Answers

Ohio GXMO Study Guide Review Exam Questions With Verified Answers Who discovered x-rays? - answerWilhelm Conrad Roentgen When were x-rays discovered? - answerNovember 8, 1895 in Germany What are the 3 Cardinal Principals of radiation protection? - answerMaximize distance, maximize shielding, minimize time What is Erythema? - answerReddening of the skin What is Anemia? - answerDecrease of oxygen in blood, low blood count What is Leukopenia? - answerLow WBC count What is epilation? - answerLoss of hair What does ALARA stand for? - answerAs Low As Reasonably Achievable What is collimation? - answerLimits the size/area of the x-ray beam What is a proton? - answerPositively charged, in nucleus of atom What is a neutron? - answerNo electrical charge, in nucleus of atom What is a electron? - answerNegatively charged, in orbital shell around nucleus of an atom What is an ion? - answerA charged particle What is ionization? - answerProcess of an electron leaving its orbit around a neutral atom What is an ion pair? - answerAn electron and a positive charged atom What does isotropic mean? - answerEqual in all directions What is energy? - answerThe ability to do work What is mass? - answerThe quantity of matter What is matter? - answerAnything that occupies space and has mass What travels at 186,000 miles/second? - answerAll electromagnetic radiation Does electromagnetic radiation have mass? - answerNo What has higher energy than visible light? - answerX-rays What happens when x-rays are absorbed by body tissue? - answerCauses ionization of atoms and molecules Ionization can result in what type of damage? - answerBiological Damage What is radioplaque? - answerDOES NOT go through What is radiolucent? - answerSees through A special mechanism that stops tube movement at a specific location is? - answerDetent What device receives the energy of the x-ray beam and forms the image of the body part? - answerImage Receptor What type of cassette containing film receives x-ray beam? - answerFilm based What is a latent image? - answerA hidden image A cassette containing film receives the x-ray beam. The film now contains a latent image and will become visible after being processed in a? - answerDark room What type of cassette containing a phosphor plate receives the x-ray beam? - answerComputed Radiography In CR, the phosphor plate will be scanned by a? - answerLaser An electronic plate receives the x-ray beam and produces and electronic signal that is sent directly to a computer for processing and digital image formation? - answerDirect/Digital What prevents scatter radiation from reaching the IR? - answerGrid What includes a tray to hold the IR? - answerBucky What does the collimator do? - answerLimits the size of the radiation field What does transverse mean? - answerMovement of the x-ray tube across the patient from left to right What does longitudinal mean? - answerMovement of the x-ray tube from the foot end toward the head end of the patient What does vertical mean? - answerMovement of the x-ray tube from 30" to 40" inches about the film What does kVp control? - answerThe penetrating ability of the x-rays