Welcome to your Radiography Name: Email: [From where is the visible image distributed to viewing or recording media? fig. ] A B C D None Comment . [Which of the following may result in occupational exposure for a radiographer?] Photoelectric interaction Compton interaction Coherent scatter Pair production None . [When an AP projection of the hip is performed, the central ray is directed:] Perpendicular to a point 2 inches medial to the anterior superior iliac spine (ASIS) at the level of the superior margin of the greater trochanter Parallel to a point 2 inches medial to the ASIS at the level of the superior margin of the greater trochanter At a 15-degree cephalad angle To the level of the ASIS None . [The prefix that means “many” is:] Peri- Poly- Hemi- Epi- None . [The intensity of radiation is inversely proportional to the square of the distance between the source of radiation and the person receiving it. This describes the:] Square law Reciprocity law Inverse square law Octet law None . [How often is added filtration adjusted by the radiographer?] After several exposures Daily As part of weekly quality control Never None . [Which of the following bones has a dens?] Atlas Axis Thoracic vertebra Lumbar vertebra None . [The abbreviation that stands for a stroke is:] hx Bx CVA MI None . [Which of the following statements apply when radiography is performed on trauma patients? 1. Work quickly and efficiently 2. Patient may be left alone if unconscious 3. Spinal injury may be ruled out if patient is not on a spine board or wearing a cervical collar 4. Observe for changes in wound dressing while performing radiography 5. Document in writing changes in patient’s conditiona.] 1, 3, 4 1, 2, 3 1, 4, 5 1, 2, 3, 4, 5 None . [In an attempt to maintain the quality of patient care at the highest level possible over time, proof of continuing education is mandatory for renewal of certification with:] State licensing boards in all 50 states American Society of Radiologic Technologists The Joint Commission ARRT None . [Cell radiosensitivity is described by the:] Inverse square law Law of Bergonie and Tribondeau Reciprocity law Ohm’s law None . [The CR reader unit scans the IP with a(n):] Infrared light Laser Sonar Visible white light None . [Which of the following requires that all equipment and personnel be carefully covered?] Airborne precautions Contact precautions Droplet precautions Patients with neutropenia None . [For axial projection of the calcaneus, the central ray is angled how many degrees to the long axis of the foot?] 25 15 10 40 None . [Structure F is the fig.] Obturator foramen Ischial tuberosity Greater trochanter Lesser trochanter None Comment . [For a patient who has a history of intravenous urography and no contrast agent reactions:] The radiographer may assume there would be no reaction on subsequent intravenous urograms The radiographer must assume there is a chance of a reaction on other contrast examinations The radiographer must assume there is a chance of a reaction on subsequent intravenous urograms There is no chance of reactions on subsequent intravenous urograms None . [A photodiode converts:] AC to DC Light into a charge Electrons into light MRI signal into PACS data None . [The portion of the image-intensifier tube that converts electron energy to visible light is the:] Output phosphor Photocathode Input phosphor Detector element None . [Which device reduces voltage and provides current to produce an electron cloud or space charge at the filament?] Step-down transformer Rectifier Cathode Timer None . [A radiographic image with few gray tones, primarily exhibiting black and white, would be described as having what type of contrast? 1. Long scale 2. Short scale 3. Low 4. High] 2 and 4 1 and 3 1 and 4 2 None . [The unit of effective dose is the:] Becquerel Grayt Sievert Graya None . [The SI units of equivalent dose, activity, air kerma, and absorbed dose are, respectively:] Roentgen, rad, rem, curie Rad, coulomb per kilogram, curie, becquerel Rem, curie, roentgen, rad Sievert, becquerel, graya, grayt None . [For an AP projection of the AC joints:] To show AC separation properly, joints both with and without weights should be shown on one image receptor if possible To show AC separation properly, separate images must be acquired with equal weights attached to both wrists and without weights The central ray is always directed midway between the AC joints The patient should be seated upright and instructed to continue shallow breathing during the exposure None . [What body type has the stomach and gallbladder high and horizontal?] Hypersthenic habitus Sthenic habitus Hyposthenic habitus Asthenic habitus None . [Lower spatial resolution may be caused by which of the following factors?] Short OID Long SID Small focal spot Wide pixel pitch None . [What device always delivers the shortest exposure time possible?] Anode mA meter Ionization chamber Falling load generator None . [The function of contrast is to:] Make the image appear sharper Compensate for uneven anatomic structures Brighten the image Make detail visible None . [Areas occupied by persons trained in radiation safety and wearing personnel monitoring devices are called:] Controlled areas Uncontrolled areas Off-limits areas Radiation areas None . [Cell damage may be exhibited as:] Loss of function or abnormal function Nothing Enhanced function None . [A histogram analysis error may be caused by:] Excessive mAs Pixel unresponsiveness Inappropriate collimation Excessive kVp None . 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