Welcome to your Radiography Name: Email: [Which of the following primarily involves loosely bound outer-shell electrons?] Photoelectric interaction Compton interaction Coherent scatter Pair production None . [What device is turned by a rotor?] Anode mA meter Ionization chamber Step-up transformer None . [When you are performing patient care in radiology:] Hands should be washed after each procedure Gowns and gloves should always be worn Hands should be washed only after you care for obviously infectious patients Gloves should be worn only when you perform gastrointestinal procedures or venipuncture None . [After all radiographic or fluoroscopic procedures, the radiographer should use ________ to clean surfaces with which the patient was in contact.] Alcohol Surgical asepsis Soap and water Medical asepsis None . [Which of the following is accurate as low as 100 μGya?] TLD Film badge OSL Handheld ionization chamber None . [Distortion that affects the size of the object as represented on the radiographic image is called:] Minification Foreshortening Elongation Magnification None . [Most of the damage to a cell occurs as a result of:] Direct effect Mutations Law of Bergonie and Tribondeau Indirect effect None . [Smoothing software may result in:] Enhanced fine detail Less distortion Loss of fine detail Increased distortion None . [This forms the medial part of the anterior chest wall:] Manubrium Floating Xiphoid Sternum None . [What type of x-ray machine uses a continually decreasing mA for the shortest times possible?] Ionization chamber Portable C-arm Falling load generator None . [This type of infection transmission occurs when an animal contains and transmits an infectious organism to humans:] Contact transmission Airborne transmission Droplet transmission Vectorborne transmission None . [Three-phase, 12-pulse full-wave rectification produces:] Direct current with 13% ripple Direct current with 4% ripple Direct current with 100% ripple Alternating current with 13% ripple None . [The type of shock that occurs secondary to heart failure is called:] Hypovolemic shock Septic shock Neurogenic shock Cardiogenic shock None . [The portion of contrast that is caused by variationsin the anatomy or that is secondary to pathologicchanges is called:] Radiographic contrast Anatomic contrast Pathologic contrast Subject contrast None . [The measurement of the luminance of a monitor is called:] Density Contrast Brightness Detail visibility None . [Structures seen outside of the collimated area on a radiograph, produced by “off-focus” (extrafocal) radiation, are the result of:] Electron interaction within the x-ray tube at a point other than the focal spot Scatter radiation emanating from the patient or tabletop The use of an SID that is not recommended with the grid in use The x-ray tube positioned off-center to the grid None . [The exposure switch on a portable x-ray machine must be attached to a cord that is at least how many feet long?] 3 6 12 2 None . [The SI unit of radioactivity is the:] Becquerel Gray Quality factor Curie None . [What is the type of infection control in which microorganisms have been eliminated as much as possible by the use of water and chemical disinfectants?] Medical asepsis Surgical asepsis Standard precautions Gas sterilization None . [Which of the following describes the radiosensitivity of lymphocytes?] Low radiosensitivity Least radiosensitive cells in the body Most radiosensitive cells in the body There is no connection between lymphocytes and radiation exposure None . [For a medial oblique position of the ankle, which of the following statements are true? 1. The leg and foot are rotated medially 2. The ankle is adjusted to a 90-degree angle 3. The medial rotation is adjusted to 45 degrees to show the mortise joint 4. The medial rotation is adjusted to 15 to 20 degrees to show the bony structure 5. The central ray is directed vertically midway between the malleoli] 1, 4 1, 5 1, 3, 4, 5 1, 2, 3, 4 None . [Structure E is the fig. ] Hamate Trapezium Trapezoid Capitate None Comment . [Which of the following articulate(s) with the first, second, and third metatarsal bones?] Navicular Calcaneus Talus Cuneiforms None . [A particular x-ray room is “shooting dark.” The problem arises when a change is made from 200 to 300 mA using fixed kVp techniques at 0.16 second. Which of the following would lead to an accurate diagnosis of the problem?] Resolution test pattern Measurement of HVL Use of a digital dosimeter to determine exposure reproducibility Use of a digital dosimeter to determine exposure linearity None . [The structure designated as I is the fig.] Pedicle Superior vertebral notch Interior vertebral notch Lamina None Comment . [Film badges are changed:] Quarterly Weekly Yearly Monthly None . [Structure D is the fig.] Zygomatic arch Anterior nasal spine Bony nasal septum (perpendicular plate of ethmoid and vomer) Angle of mandible None Comment . [Which of the following conditions is seen primarily in children?] Polycystic kidney disease Renal calculus Wilms tumor Renal cysts None . [If OID is decreased, what is the effect on spatial resolution?] Increases Decreases No appreciable effect None . [The most frequently performed examination using a contrast medium is a(n):] Small bowel study IVP Barium enema Chest x-ray study None . Time's up
