Welcome to your Radiography Name: Email: [When sterile fields are prepared, damp packages:] Are always considered contaminated Are always considered sterile because the dampness confirms they were cleaned Should be unwrapped first and placed in the center of the sterile field Are always considered sterile; the dampness is a remnant of the gassing process None . [The lowest intensity of scatter radiation from the patient is located:] At the head of the table At a 90-degree angle from the patient At a 180-degree angle from the patient At the foot of the table None . [The law stating that the outer shell of an atom can contain no more than eight electrons is called:] Ohm’s law Octet rule Octagon rule Electron binding energy None . [Increased dose equals increased probability of effects best describes which of the following?] Stochastic effects Deterministic effects Direct effect Indirect effect None . [Activating the rotor:] Accelerates a procedure Reduces tube life Keeps it oiled Keeps the cooling fan activated None . [An AP lordotic chest radiograph best demonstrates the:] Apices of the lungs Bases of the lungs Mediastinal structures Position of the diaphragm None . [Which of the following is a digital monitor that may be used to measure dose in an area?] TLD Film badge Pocket ionization chamber Handheld ionization chamber None . [When a quality control test for exposure reproducibility is performed, successive exposures must be within ________ of one another.] 2% of SID 4% 10% 5% None . [Patient transfers from cart to x-ray table and back to cart should be performed:] By the radiographer alone if the patient is ambulatory By two or more radiographers to ensure patient and radiographer safety By the radiographer alone if the department is short staffed By the radiographer alone so as not to frighten the patient None . [The accuracy of the timer must be within:] 10% of the time chosen for exposures over 10 ms 5% of the time chosen for exposures over 10 ms 5% of the time chosen for exposures under 10 ms 10% of the time chosen for exposures under 10 ms None . [The increase in average photon energy when using three-phase, 6-pulse equipment compared with single-phase equipment is:] 1.35% 41% 1.41% 35% None . [Lead aprons used in fluoroscopy must be at least:] 0.5-mm lead 0.25-mm lead 0.1-mm lead 0.25-mm lead equivalent None . [The amount of receptor exposure is controlled primarily by:] kVp Focal spot size AEC mAs None . [A pit is described as a:] Fossa Groove Sulcus Sinus None . [Digital image receptors are more sensitive to:] Scatter and background radiation Fluorescent lights Free electrons Free radicals None . [Needles and syringes must be disposed of:] Capped Weekly Uncapped Monthly None . [An indicator of the dose level needed to acquire an optimal image is:] Detective quantum efficiency Dose area product Field of view Dynamic range None . [Which of the following results in the production of a photoelectron that is ejected from the atom?] Photoelectric interaction Compton interaction Coherent scatter Pair production None . [What are graphs called that show the relationship between dose of radiation received and incidence of effects?] Nonlinear-nonthreshold effect Linear-nonthreshold effect Radiation-effect curves Dose-response curves None . [When AEC is used, increasing the kVp:] increases the exposure time increases the image contrast decreases the exposure time has no effect on image quality None . [Because barium enemas increase the possibility of contact between body substances and clothing, the radiographer should always wear:] Disposable gowns or surgical scrubs Head covering Shoe covering A regular hospital uniform None . [Structure I is the fig. ] Talus Navicular Tuberosity Second or intermediate cuneiform None Comment . [What must precede any examinations involving iodinated contrast media?] Chest x-ray study Nephrotoxicity assessment Patient held NPO Pregnancy test None . [The eleventh and twelfth pairs of ribs are called:] Manubrium Floating Xiphoid Jugular notch None . [An integrated system of images and information is called:] DICOM DDR CR/DDR PACS None . [The latest digital fluoroscopic units use:] Nonionizing radiation CR cassettes Conventional image intensifiers Flat panel plates similar to DR None . [The first step in pouring liquids into containers in a sterile field is to:] Allow the liquid to drop onto the sterile field Pour a small amount into a waste receptacle to cleanse the lip of the bottle Carefully determine the contents of the container Immediately pour the solution when requested to do so None . [Cellular components contained in the cytoplasm are called] Free radicals Ions Organelles DNA strands None . [Choose all that are properties of x-rays (choose 6):] Electrically negative Affect film emulsion Scatter and produce secondary radiation Invisible to the human eye Travel at the speed of light (186,000 miles per hour) Possess wavelengths between 1 Å and 5 Å Travel in bundles of energy called photons Can ionize matter and gases Can be focused by collimators Cause phosphors to fluoresce None . [Which of the following is used as part of an effort to practice the ALARA concept?] Grids Increased mAs Collimation Thinner filtration None . Time's up
