Welcome to your Radiography Name: Email: [An algorithm is:] A mathematical hypothesis used in imaging A mathematical formula used to reconstruct the image in digital imaging An advanced imaging procedure The mathematical basis for film-screen imaging None . [The primary controlling factors of receptor exposure are:] kVp and mAs mAs and SID SID and OID SID, OID, FSS None . [Which of the following sets of exposure factors would result in the lowest dose to the patient?] High mAs, low kVp Low mAs, high kVp Low mAs, high kVp, small focal spot Low mAs, high kVp, large focal spot 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 speed of x-rays is based on:] mAs kVp Size of the patient The fact that they are a form of electromagnetic radiation None . [Structure c is the fig] Transverse colon Ascending colon Hepatic flexure Splenic flexure None Comment . [Which set of exposure factors would produce the greatest receptor exposure?] 100 mAs, 70 kVp, 0.5-mm focal spot, 60-inch SID 200 mAs, 60 kVp, 1.2-mm focal spot, 60-inch SID 100 mAs, 70 kVp, 1.2-mm focal spot, 60-inch SID 300 mAs, 90 kVp, 0.5-mm focal spot, 60-inch SID None . [What type of joint permits rotary movement in which a ring rotates around a central axis?] Ball-and-socket joint Pivot joint Hinge joint Saddle joint None . [According to NCRP Report #160, the increase in total exposure is primarily attributed to increased use of:] MRI Diagnostic medical ultrasound Fluoroscopy and interventional procedures CT None . [What is a tumor that arises on bone with a large bubble appearance and may be benign or malignant?] Trimalleolar fracture Giant cell myeloma Osteoarthritis Pott fracture None . [Smoothing software may result in:] Enhanced fine detail Less distortion Loss of fine detail Increased distortion None . [Located below the tubercles of the humerus is (are) the:] Greater and lesser tubercles Bicipital groove Capitulum Surgical neck None . [The increase in average photon energy when using three-phase, 12-pulse equipment compared with single-phase equipment is:] 1.35% 41% 1.41% 35% None . [Which of the following is located between the patient and the image receptor?] Anode mA meter Ionization chamber Falling load generator None . [Most of the energy conversion in the x-ray tube produces:] X-rays Light Heat Current None . [What agency publishes radiation protection recommendations?] ICRP NCRP NRC ASRT None . [Structure f is the fig.] Jejunum Ascending colon Hepatic flexure Descending colon None Comment . [A software function that evens the brightness displayed in the image is called:] Smoothing Equalization Postprocessing Subtraction None . [What is the source of bremsstrahlung and characteristic rays?] Anode mA meter Falling load generator Step-up transformer None . [Structure C is the fig. ] Zygomatic arch Foramen magnum Bony nasal septum (perpendicular plate of ethmoid and vomer) Body of maxilla (contains the maxillary sinuses) None Comment . [To reduce patient dose, exposure technique in digital imaging should be adjusted by:] Lowering kVp Increasing mAs Shortening SID Increasing kVp None . [The height of a sine wave is called:] Wavelength Altitude Amplitude Frequency None . [For lateral projection of the facial bones, the central ray enters at the:] Glabella Medial surface of the zygomatic bone Medial surface of the nasal bone Lateral surface of the zygomatic bone None . [The proper centering point for a PA projection of the hand is the:] Third metatarsophalangeal joint Third metacarpophalangeal joint Midshaft of the third metacarpal First metacarpophalangeal joint None . [When radiography is performed on patients in isolation, the IR:] Should be placed in a protective covering only if the patient is in reverse isolation Must always be placed in a protective covering Should be placed in a protective covering to keep it free of microbes Should be placed in a protective covering so that no microbes leave the room None . [The function of contrast is to:] Make the image appear sharper Compensate for uneven anatomic structures Brighten the image Make detail visible None . [Which set of exposure factors would produce the lowest receptor exposure?] 80 mAs, 85 kVp, 40-inch SID, 1.2-mm focal spot 40 mAs, 60 kVp, 40-inch SID, 0.5-mm focal spot 160 mAs, 70 kVp, 40-inch SID, 1.2-mm focal spot 160 mAs, 90 kVp, 40-inch SID, 0.5-mm focal spot None . [The complete removal of all organisms from equipment and the environment in which patient care is conducted is called:] Medical asepsis Surgical asepsis Standard precautions Gas sterilization None . [Place the following steps for performing venipuncture in the proper order. 1. Secure tourniquet in place 2. Thoroughly cleanse the skin 3. Wash hands 4. Select vein 5. Put on gloves 6. Perform puncture 7. Cover wound and compress site 8. Inject contrast agent 9. Check wound for swelling 10. Observe blood return] 5, 4, 1, 6, 8, 7 3, 1, 4, 5, 2, 6, 10, 8, 7, 9 3, 5, 1, 4, 2, 6, 10, 8, 7, 9 4, 1, 3, 5, 2, 6, 8, 9, 10, 7 None . [When are embryologic effects least likely to occur?] During the final trimester of gestation During the middle trimester of gestation During the first trimester of gestation At conception None . Time's up
