Welcome to your Radiography Name: Email: [Which of the following is used to feed a patient or conduct gastric suction?] Urinary catheter Chest tube Ventilator NG tube None . [The primary type of grid used in diagnostic imaging is:] Crosshatch Parallel Rhombic Focused None . [A term used to describe the mathematical formula used by the computer to reconstruct the image is:] Bit depth Algorithm Mathematical function Exposure equation None . [Which of the following articulate(s) with the first, second, and third metatarsal bones?] Navicular Calcaneus Talus Cuneiforms 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 . [Older patients should be scheduled:] Late in the day to give them time to build their strength For one examination at a time As early in the day as possible Only when no one else is in the department None . [Structure D is the fig. ] Capitulum Olecranon process Radial head Ulnar head None Comment . [This type of infection transmission occurs when an infected person or contaminated object touches a host:] Contact transmission Airborne transmission Droplet transmission Common vehicle transmission 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 . [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 you are performing trauma radiography:] Splints, bandages, and cervical collars should be removed so that they do not obstruct the anatomy that must be imaged Remove cervical collars only under the direction of a radiologist Remove cervical collars only under the direction of an emergency department physician or radiologist Splints, bandages, and cervical collars should be removed only after preliminary images have been viewed by a physician so that they do not obstruct the anatomy that must be imaged None . [Structure B is the fig. ] Pedicle Spinous process Coracoid process Lamina None Comment . [The result of thermionic emission is a(n):] Recoil electron Electron cloud Scattered photon Characteristic photon None . [When a quality control test for collimator accuracy is performed, the result must be within ________.] 2% of SID 4% 10% 5% None . [Which of the following is composed of solid-state silicon-based diodes?] Step-down transformer Rectifier Cathode Timer None . [The unit of Bq would be used in what imaging modality?] Radiography CT MRI Nuclear medicine None . [Devices in the x-ray circuit that increase or decrease voltage are called:] Rectifiers Generators Timers Transformers None . [Which of the following photon–tissue interactions necessitates the use of a grid?] Photoelectric interaction Compton interaction Coherent scatter Pair production None . [Receptor exposure was formerly called:] Contrast Detail Density Distortion None . [Cells are more radiosensitive when:] Fully oxygenated Deoxygenated Slowly dividing Near the skin None . [As speed class increases:] The likelihood of noise increases The likelihood of noise decreases Patient exposure increases Sharpness increases None . [If the dose of scatter radiation in fluoroscopy to the radiographer is 10 mGya at a distance of 2 feet from the table, where should the radiographer stand to reduce the dose to 2.5 mGya?] 8 feet from the table 4 feet from the table At the foot of the table Directly behind the fluoroscopist None . [Secondary protective barriers must extend to a height of:] 5 feet 6 feet The ceiling 10 feet 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 . [Rugae may be found in the fig. ] Esophagus Stomach Small intestine Large intestine None Comment . [Structure G is the fig.] Second proximal interphalangeal joint First carpometacarpal joint Second distal interphalangeal joint Second metacarpophalangeal joint None Comment . [Which of the following involves interaction between an incident photon and an atomic nucleus?] Photoelectric interaction Compton interaction Coherent scatter Pair production None . [Needles should be recapped after use:] Never Always In a nonsterile field Only during procedures involving a sterile field None . [Increased dose equals increased probability of effects best describes which of the following?] Stochastic effects Deterministic effects Direct effect Indirect effect None . [An imaging exam using a contrast agent to evaluate possible herniated intervertebral discs is called a(n):] Arthrogram Spinal study Myelogram Discography None . Time's up
