COMPETITION Utilization of a large focal spot will result in: a. b. c. d. greater concentration of heat on the anode decreased concentration of heat on the anode decreased electron emission increased energy of the x-rays produced 5. Which of the following pathological conditions would require a decrease in mAs or kVp to maintain an acceptable density? 1. 2. 3. Paget's disease pulmonary emphysema osteoporosis a. b. c. e. 1 2 2 and 3 1, 2 and 3 6. The crushing of a stone or calculus in the kidney is called: a. b. c. d. lithotomy nephrolithiasis pyelonephritis lithotripsy 8. Which of the following structures is located most anterior in the abdomen? a. b. c. d. spleen kidney transverse colon inferior vena cava The medical term that refers to the condition of dead tissue is: 10. a. b. c. d. necrosis necropsy noctihistosis nyctohistosis On a correctly positioned AP projection of the pelvis, which structure should NOT be visualized? 14. a. b. c. d. greater trochanter lesser trochanter femoral neck femoral head 22. The majority of damage to the DNA molecule results from the _____ effect of radiation. a. b. c. direct indirect both occur equally A radiograph of wire mesh is obtained utilizing 5 mAs, 50 kVp, a 40" SID and 200 film screen speed. A localized area of unsharpness is detected in one corner of the radiograph. This area of unsharpness is most likely due to: 32. a. of the screen b. c. d. difference in intensification factor in that area variation in focal spot size quantum mottle effect poor screen film contact • A. B. C. D. Radiographic ____ is random fluctuation in the optical density of a radiograph. a.detail b.contrast c.noise d.resolution 33. In order to utilize the anode heel effect, the body area being radiographed with the greatest thickness should be positioned: a. at the anode side of the x-ray b. at the cathode side of the x-ray c. in the central portion of the x-ray beam beam beam When adjusted, which of the following factors provides a direct proportional relationship with the number of x-rays produced? 36. a. b. c. d. e. mA SID kVp intensifying screen speed grid ratio Which of the following phosphors is not used in intensifying screens? 37. a. b. c. d. calcium tungstate gadolinium thorium d. lanthanum A deficiency of oxygen in the blood is termed: 41. a. b. c. d. anosmia hypoxemia tachypnea apnea To demonstrate the coccyx with the patient prone, the central ray should be directed: 50. a. b. c. d. e. perpendicular to the film 10 degrees cephalad 20 degrees cephalal 10 degrees caudad 40 degrees caudad A film badge reading of 70 mrem is equal to how many rem? 62. a. b. c. d. 70,000 7,000 .70 .07 64. An increase in filtration of the x-ray beam would result in an: a. b. c. d. increase in output in mR/second increased skin dose to the patient increase in the half value layer increase in radiographic contrast Which of these body parts has the highest subject contrast? a.abdomen b.skull c.chest d.pelvis Compared with an 8:1 grid, a 16:1 grid exhibits which of the following characteristics? 197. a. b. c. latitude d. greater cleanup, less positioning latitude less cleanup, greater positioning latitude greater patient does, greater positioning greater selectivity, less patient dose 66. What is the maximum permissible dose for a radiation worker? a. b. c. d. .5 rem per year 5 rems per year 5 mrems per year the least amount possible The resultant effect of an increase in voltage to the xray tube is production of x-rays with: a. b. c. d. longer wavelengths and higher frequencies shorter wavelengths and higher frequencies longer wavelengths and lower frequencies shorter wavelengths and lower frequencies 182A patient arrives via ambulance to the emergency room on a backboard and in a cervical collar following a motor vehicle accident. The most likely examination to be ordered first is: a. b. c. d. portable chest lateral skull rib series portable cross-table lateral cervical spine The sensing material in a thermoluminescent dosimeter badge is: 80. a. b. c. d. yttrium lanthanum zinc cadmium lithium fluoride What is the maximum amount of time that can elapse before the fluoroscopic cumulative timer must be reset? 165. a. b. c. d. 5 minutes 10 minutes 15 minutes 20 minutes A device that stores an electrical charge is a: 82. a. b. c. d. generator solenoid capacitor rectifier Which of the following phases in the cycle of the cell would possess the highest radiosensitivity? 86. a. b. c. d. ANAPHASE METAPHASE PROPHASE TELOPHASE 2. Cyanosis is an indication of: a. b. c. d. osteoporosis end-stage renal disease lack of oxygen to the tissues hypovolemia When a barium enema is being administrated, the barium bag should be: 89. a. b. c. d. 30 inches above the patient's hips 4 feet, above the patient's hip as high as possible 50 inches above the patient's hips 91. Static artifacts can be prevented by: a. b. static cleaner c. friction d. e. maintaining darkroom humidity at 40 - 60% cleaning the intensifying screens with antihandling film gently to reduce or prevent all of the above a. and b. 92. Reduction of a 14 x 17 inch field to an 8 x 10 inch field with all other factors remaining the same would result in: a. radiation b. radiation c. radiation d. radiation increased density and decreased scattered increased density and increased scattered decreased density and decreased scattered decreased density and increased scattered A vascular tumors treated with radiotherapy are sometimes also treated with hyperbaric therapy because: 172. a. b. conditions c. conditions d. oxygen helps repair radiation burns tumors are more sensitive in oxygenated tumors are less sensitive in oxygenated hyperbaric therapy aids patient comfort level The difference between gamma rays and x-rays is: 173. a. b. c. d. size source penetrating ability charge 179Which of the following are beam restriction devices? a. b. c. d. grids, cones, collimator collimator, cone, diaphragm grid, AEC, collimator cone, AEC, radiolucent sponge The medical term for the structure that prevents choking is: 99. a. b. c. e. hyoid bone thyroid cartilage larynx epiglottis The most common television camera tube used for fluoroscopy is a: 110. a. b. c. d. grid pulsed vidicon opticon orthochromatic A one-time, 200-R dose directly to the hair follicles would most likely result in: 163. a. b. c. d. moist desquamation epilation hirsutism hematopoietic syndrome . The number of solid state rectifiers utilized for three phasetwelve pulse generation would be: 111 a. b. c. d. 2 4 8 12 13. A nosocomial infection is one that: a. b. c. d. is acquired from a friend or loved one is non-communicable is acquired in the hospital setting presents no danger to the patient The AEC accounts for all of the following exposure factor variables except: 198. a. b. c. d. distance part thickness pathology positioning 200. The 10-day rule is a guide concerning which of the following time periods? a. ten days past the first trimester b. ten days following the onset of menstruation c. the first 10 days of gestation ten days following a childbirth The slipping of one part of an intestine into another part of the intestine just below it is called: 118. a. b. c. d. peristalsis enteritis bullimia intussusception Which of the following is a method of radiation protection also resulting in improved contrast? 121. a. b. c. use of grids collimation use of low kVp, high mAs d. all of the above factors Which type of waveform is associated with an approximate 13% voltage ripple? 45. a. b. c. d. three-phase, twelve-pulse three-phase, six-pulse single-phase half-wave rectified HIV may be transmitted in all of the following ways except: 4. a. b. c. d. transfusions giving birth sharing drinking water sharing needles Which of the following types of interactions would occur in the diagnostic x-ray range, (50 to 150 KV)? 123. 1. 2. 3. photoelectric effect Compton effect pair production a. b. c. d. e. 1 1 and 2 1 and 3 2 and 3 1, 2 and 3 In order to correctly center a PA view of the hand, the CR should be directed: 67. a. 5 degrees cephalic at the third metacarpal b. c. d. perpendicular to the third metacarpal parallel to the base of the third metacarpal 5 degrees caudad at the third metacarpal head head Of the following, which view(s) of the cervical spine will demonstrate the interveretebral formamina closest to the film? 68. a. b. c. d. lateral AP RAO LPO Which of the following facial and skull landmarks describes the junction of the nose with the upper lip? 74. a. b. c. d. Glabella Acanthion Nasion Outer canthus The vermiform appendix hangs from the inferior surface of which subdivision of the colon? 77. a. b. c. d. rectum cecum ascending descending • A. B. C. D. Which medical condition may require a lower technique? atelectasis emphysema pneumonia pleural effusion A type of personnel monitoring device that is based on the measurement of light emitted from a heated material is in: 125. a. b. c. d. ion chamber film badge Geiger counter Thermoluminescent dosimeter 81. All of the following are attributes of short-scale contrast except: a. b. c. d. high contrast wide film latitude produced by high mAs, low kVp few number of density differences 167Which of the following will provide an immediate reading for a one-time, high-level exposure? b. a. TLD film badge c. lithium fluoride crystal d. pocket dosimeter 187. A double-focus x-ray tube has two: a. b. c. d. filters windows filaments rectifiers What is the most important action a technologist should take regarding a patient who is vomiting and unresponsive? 8. a. b. c. d. position provide an emesis basin call the nurse turn the patient into a prone position turn the patient into a lateral recumbent As intensifying screen speed increases, density: 189. a. b. c. d. increases decreases is unchanged becomes upredictable • A. B. C. D. Which sinus is located immediately below the sella turcica? frontal maxillary ethmoidal sphenoidal If all other exposure factors are stable, then of the following factors, which is MOST important concerning recorded detail? 191. a. b. c. d. grid ratio exposure time screen speed kVp The single best method the technologist can use to decrease voluntary motion is: 193. a. b. c. d. short exposure times long exposure times good communication fast screens A patient with profound mental retardation arrives in the radiology department for flat and upright abdomen examination fail; it is apparent that the patient must be held if the examination is to be successful. Of the following the best individual to hold the patient is: 169. a. b. c. d. another technologist the patient's mother an orderly a nurse There is complete absorption of the incident x-ray photon with • a.photoelectric effect. • b.Compton interaction. • c.pair production. • d.coherent scatter • A. B. C. D. When only optical density needs to changed, then only the ____ should be adjusted. mAs kVp SID Both a and b Which of the following pieces of equipment would be used for testing the focal spot size? 126. a. b. c. d. pinhole camera wire mesh penetrometer sensitometer • A. B. C. D. The use of ____ reduces the risk of a drug reaction during angiographic procedures. hydrophilic catheters ionic contrast nonionic contrast heparin coating When performing a radiographic examination of the stomach, which position/projection demonstrates barium in the fundus? 56. a. b. c. d. RAO erect AP right lateral Where should the technologist wear his/her film badge during the lumbar spine exam : 63. a. b. c. Be.d on the waist level on the collar level on the abdomen level below the waist level In a double-contrast barium enema examination, the primary area of interest for a 45 dergree RAO projection is the: 65. a. b. c. d. rectum splenic flexure hepatic flexure sigmoid colon An outer-shell electron is ejected and the atom is ionized with a. photoelectric interactions. b. Compton interactions. c. coherent scattering. d. pair production Improper stacking of film boxes in the film storage is is likely to cause: 88. a. b. c. d. static artifact tree artifact pressure artifact fingernail artifact The term used to describe the statistical variation in the number of x-ray photons absorbed by the intensifying screen is: 129. a. b. c. d. noise latent image latitude artifact The radiologic technologist can facilitate a lumbar spine examination by increasing the patient's comfort level by: 14. a. b. requesting pain medicine for the patient placing a pad or sponge under the patient's knees c. limiting the examination to anteroposterior (AP) and lateral views d. performing the examination as rapidly as possible How much time is required for an exposure equaling 70 mAs when using the 200-mA small focal spot station? 91. a. b. c. d. 0.50 sec 1 sec 0.35 sec 0.55 sec 56. The term base plus fog describes: a. b. radiation c. density d. such a radon unwanted exposure of film to light unwanted exposure of film from scatter inherent manufacturing and processing contributing environmental exposure factors, Radiographic evaluation of the uterus and fallopian tubes by injection of iodinated contrast material via uterine cannulation is called: 78. a. b. c. d. Uterography Pelvic pneumography Hysterogram Hysterosalpingography A type of shielding that attaches to the x-ray tube is: 23. a. b. c. d. contour flat shadow flat The amount of exposure produced at a 40" SID is 80 mR per exposure. If all other factors remain the same, what would be the exposure in mR, if the SID is increased to 80"? 130. a. b. c. d. e. 320 mR 40 mR 160 mR 20 mR 200 mR One of the most radiosensitive tissues in the body is ____ tissue. a.spinal b.muscle c.lymphatic d.thyroid 137. Which of the following projections of the foot would best demonstrate the articulation between the cuboid and the calcaneus? a. b. c. d. dorsoplantar projection medial oblique projection lateral oblique projection lateral medial projection According to the laws of Bergonie and Tribondeau, which of the following cell types would be least radiosensitive? 30. a. b. c. d. muscle cells nerve cells liver cells bone marrow cells Which of the following formulas is used to determine HU output of a threephase, twelve-pulse radiographic unit? 95. a. b. c. d. HU = mA x s x kVp HU = mA x s x kVp x 1.35 HU = mA x s x kVp x 1.41 HU = mA x s x kVp x 2 41. The device that selects kVp is a: a. b. c. d. rheostat capacitor autotransformer resistor In double-contrast-enhanced UGI series, which view demonstrates the lesser and greater curvatures? 79. a. b. c. d. LPO AP Lateral PA What device would be used to measure B+F? 31. a. b. c. d. photometer wire mesh densitometer photocathode A lateral projection of the ankle will demonstrate the talus: 141. a. b. c. d. superimposing the navicular lateral to the calcaneus superior to the calcaneus anterior to the navicular Forms of patient communication include which of the following? 12. a. b. c. d. verbal facial expressions appearance all of the aforementioned 86. The ratio of the height of the lead strips to the width of the interspace material in a grid is known as: a. b. c. d. grid radius grid ratio grid cutoff lines per inch • A. B. C. D. The dose limit for the general public is ____ the dose limit for occupational exposure. 1/10 1/5 1/2 3/4 The act of swallowing is termed: a.mastication. b.digestion. c.deglutition. d.aphasia The complete removal of all microorganisms and their spores is referred to as: 18. a. b. c. d. asepsis sterile field surgical asepsis medical asepsis Which of the following examinations would best demonstrate the presence of free air under the right hemidiaphragm? 64. a. b. c. d. KUB UGI left lateral decubitus right lateral decubitus abdomen • Roentgens (or grays) is the measurement for x-ray ____. a.quantity b.exposure c.intensity d.All of the above. • The swimmer’s technique lateral projection is performed to demonstrate the: a.cervical vertebrae b.thoracic vertebrae c.atlas and axis d.cervicothoracic region vertebrae 81. A step-down transformer would be utilized: a. ray tube b. c. d. in the production of high voltage to the xin the production of tube current to compensate line voltage to adjust kVp Humans are most radiosensitive during a.fetal stages. b.infancy. c.adulthood. d.old age. Which two vessels deliver blood to the heart muscle? a.Right and left pulmonary arteries b.Right and left pulmonary veins c.Right and left coronary arteries d.Right and left cardiac arteries Radioactive material is measured in ____. a.rads b.rems c.seiverts d.curies Which of the following types of precautions usually requires more than one person to perform the exam? 145. a. b. c. d. airbome droplet contact standard The two primary forms of x-ray interaction in the diagnostic range are A. Compton scattering and photoelectric absorption. B. Compton scattering and pair production. C. photoelectric absorption and coherent scattering. D. coherent scattering and Thompson scattering The functional unit of the kidney is known as the: 66. a. b. c. d. nephron axon glomerulus renal tubule 146. Which of the following causes hypovolemic shock? a. abnormal dilatation of the peripheral blood b. c. d. sever systemic infections low volume of plasma in the body sensitivity to contrast agents vessels The rapid onset of severe cardiovascular and respiratory symptoms following non-ionic contrast-media injection, including cessation of heartbeat and respiration, is best described by which term? 10. a. b. c. d. diaphoresis DVT anaphylactic shock prn Protective apparel such as lead aprons and gloves should be _____ at least once every ____. 164. a. b. c. d. worn, week imaged, month worn, day imaged, year Approximately ____ of the kinetic energy of the projectile electrons is converted to x-rays at the target. a.1% b.10% c.50% d.99% Which of the letters in the diagram refers to a navicular bone? 157. a. b. c. d. d a b c d ____ is a late effect of radiation exposure. a.Erythema b.Epilation c.Cancer d.Nausea Photons with the highest frequencies have the a.highest velocity. b.lowest energy. c.longest wavelengths. d.shortest wavelengths 12. The ileocecal valve is located in the: a. b. c. d. right upper quadrant right lower quadrant left upper quadrant left lower quadrant Which type of rectification eliminates the negative alternation of alternating current? 42. a. b. c. d. half-wave full-wave three-phase inverse To demonstrate the zygapophyseal joints of the lumbar spine, the patient angle is: a.30 degrees b.45 degrees c.50 degrees d.55 degrees If the wavelength of a beam of electromagnetic radiation increases by a factor of 2, then its frequency must a.double. b.increase four times. c.decrease by half. d.remain constant WhWhich of the following projection would demonstrate all of the sinuses? a. b. c. PA SMV lateral c. AP Caldwell d. Waters • What is the classification of barium sulfate as a contrast media? a.Radiopaque b.Radiolucent c.Isodense d.Negative contrast media What device is used to test accuracy of the x-ray timer? 100. a. b. c. d. aluminum step wedge spinning top star pattern densitometer wIn what hat position was this radiograph obtained? . RAO LPO lateral AP erect The theory of radiation hormesis suggests that radiation doses below 10 rads are ____. a.carcinogenic b.beneficial c.lethal d.harmful The highest incidence of infection transmission can be attributed to which of the following? 15. a. b. c. d. hands improper sterilization droplet contact improper linen disposal 34. If after processing the films come out hot and brittle, the probable cause is: a. fixer over-replenishment b. inadequate developer replenishment c. dryer temperature too high Ded. developer temperature too high Which of the following measurements requires multiplication by the QF in order to attain it? 32. a. b. c. d. rem rad R Gy An indirect means of spreading microorganisms in the OR is: 147. a. b. c. d. e. by instruments by hand to hand contact by ventilation a. and b. a. and c. The most commonly performed oblique projection of the foot is the: A. B. C. D. AP oblique in medial rotation AP oblique in lateral rotation PA oblique in medial rotation PA oblique Grashey method The navicular articulates anteriorly with which tarsal bone? 150. a. b. c. d. e. talus bases of the 1st and 2nd metatarsals heads of the 1st and 2n metatarsals cuneiforms cuboid In order to measure potential difference, the voltmeter should be wired in a: 151. a. b. c. series circuit parallel circuit series or parallel circuit . LLetter “A” is pointing to: a. b. c. d. a. lateral mass b. zygoapophyseal joint c .superior articular process d. C2 The best way to hold patients who are unable to support themselves is to use a.restraining devices. b.family members. c.other hospital staff. d.technologists The greatest threat of occupational exposure arises from: 25. a. b. c. d. Compton scatter Primary beam Thompson scatter photoelectric effect 17. Which blood pressure indicates shock? a. b. c. d. 110/80 160/110 80/60 none of the aforementioned The term antrum of Highmore refers to the: a.frontal sinuses. b.ethmoid sinuses. c.maxillary sinuses. d.nasal cavity. Which of the following is prominently shown "in profile" on an AP projection of the shoulder with the humerus in external rotation? A. B. C. D. lesser tubercle greater tubercle scapulohumeral joint acromioclavicular joint 3. Decubitus ulcers: a. may be minimized by frequent b. c. are commonly called bedsores are caused by lack of oxygen to d. are all of the aforementioned turning tissue Elevated BUN and creatinine levels are markers of which of the following? 19. a. b. c. d. patient age renal function small bowel obstruction all of the aforementioned What is the milliamperage used during fluoroscopy? a. 100 mA b. b. 50 mA c. c. 5 mA d. d. 1 mA What is the difference, in degrees, between the infraorbitomeatal and orbitomeatal lines? a.10 degrees b.15 to 2 degrees c.7 to 8 degrees d.20 to 25 degrees If a technologist is receiving 200 mR/hr standing 1 foot from the patient during fluoroscopy, what is his rate of exposure when he steps back to a distance of 2 feet from the patient? a.50 mR/hr b.74 mR/hr c.100 mR/hr d.175 mR/hr To demonstrate the sacroiliac joint with the patient supine, the affected side should be elevated: 16. a. b. c. d. 15 degrees 25 degrees 45 degrees 60 degrees • Which of the following kV ranges should be used for an upper GI series using barium sulfate (single contrast study)? a.80 to 90 kV b.90 to 100 kV c.100 to 110 kV d.125 to 140 kV • A. B. C. D. An abnormal lateral curvature of the spine is termed: scoliosis kyphosis lordosis scoliokyphosis Bremsstrahlung x-rays are produced by ____ at the target. A. B. C. D. outer shell excitation. slowing electrons. K-shell interactions. L-shell interactions Which term describes the leakage of contrast media from a vein into the surrounding tissues of the arm? a.Extravasation b.Filtration c.Exudation d.Micturition A. The data on the personnel radiation monitoring report must always include the B. current exposure. C. cumulative annual exposure. D. skin dose. E. Both a and b • A. B. C. D. The fluoroscopic exposure control switch is always a(n) ____ type. rheostat automatic deadman on-off Film is made with double emulsion to enhance film ____. a.sensitivity b.latitude c.contrast d.speed What is another term for the pancreatic duct? a.Duct of Wirsung b.Hepatopancreatic duct c.Duct of Langerhans d.Ampulla of Vater 15 The medical term hematuria can be defined as: a. b. c. d. e. blood blood in the urine blood in the the stool blood in the spinal canal blood in the renal pelvis urine constituents in the Which kVp selection would result in the most scattered x-rays in the imageforming beam? a.90 kVp b.75 kVp c.60 kVp d.50 kVp • A. B. C. D. The first component to receive power in the x-ray circuit is the ____. .mA meter high voltage transformer rectifier autotransformer According to NCRP guidelines, at least how much filtration is required of an exposure room used primarily for examination of the GI tract? 160. a. b. c. d. 2.5 mm A1 0.0025 mm A1 1.5 mm Mo 0.5 mm A1 The Mnemonic ABC is a shorthand expression for which of the following emergency procedures? a. b. c. d. Heimlich maneuver CPR Hemostasis Mouth-to-mouth resuscitation Modern radiographic film base is made of ____. a.cellulose nitrate b.silver halide c.gelatin d.polyester Which of the following are examples of inherent filtration elements? 161. a. b. c. d. collimator oil coolant aluminum inserts mirror Dose in ____ is used to identify irradiation of patients. a.rems b.rads c.R d.Sv The purpose of a grid is to achieve a.reduction of patient dose. b.extended tube life. c.improved image contrast. d.All of the above. The normal creatinine level (diagnostic indication of kidney function) for an adult is: a.0.1 to 0.5 mg/dl. b.0.6 to 1.5 mg/dl. c.3 to 4.5 mg/dl. d.6 to 7.5 mg/dl • A. B. C. D. A transformer has 100 coils on the primary side and 300 coils on the secondary side. What will the voltage be on the secondary side if the primary side is supplied with 120 volts? 100 V 300 V 360 V 3600 V How is the water-soluble contrast media eliminated following a myelogram? a.Withdrawn through a needle/syringe b.Remains in the spinal canal c.Excreted by the kidneys d.Excreted by the lungs The process of the ethmoid bone containing many foramina is the: a. b. c. d. crista galli pterygoid process cribriform plate superior conchae Which of the following carpal bones is the most frequently fractured? 42. a. b. c. d. hamate scaphoid trapezium pisiform The reduction of radiation intensity due to scattering and absorption is called ____. A. B. C. D. reflection refraction attenuation dispersion Which of the following techniques is most effective in preventing lung markings from obscuring the sternum? a.Use a high kV. b.Oblique as much as needed to not superimpose the sternum over the hilum region. c.Decrease the SID to magnify the sternum. d.Use a breathing technique • A. B. C. D. There is usually a ____ before the symptoms of acute radiation syndromes appear. latent period recovery period prolonged illness loss of hair Which term describes the leakage of contrast media from a vein into the surrounding tissues of the arm? A. B. C. D. Extravasation Filtration Micturition Exudation Which level of severity is the reaction of giant hives? a.Normal side effect b.Mild reaction c.Moderate reaction d.Severe reaction A loss of consciousness due to reduced cerebral blood flow is termed: a.syncope. b.brachycardia. c.hypotension. d.angioedema. A twisting of the intestine on its own mesentery is termed: A. B. C. D. intussusception. volvulus diverticulosis. enteritis • A. B. C. D. The principal radiation interactions within the human body are assumed to be indirect effects. direct effects. DNA damage. cell destruction. The production of heat at the anode is directly proportional to A. B. C. D. rotor speed. filament current kVp. tube current. • The total destruction of microorganisms is accomplished through the use of: • a.disinfectants • b.sterilization • c.germicides • d.antiseptics Which basic projection of the elbow best demonstrates the olecranon process in profile? a.AP b.Lateral c.Medial rotation oblique d.Lateral rotation oblique What is the recommended treatment for extravasation? a.Give the patient diphenhydramine (Benadryl). b.Lay the patient down and elevate lower limbs. c.Increase IV fluids. d.Place a warm towel over the injection site The fluoroscopic exposure control switch is always a(n) ____ type. a.rheostat b.automatic c.deadman d.on-off What CR angulation is required for the AP oblique projection of the foot? a.CR is perpendicular to the image receptor b.10 degrees posterior c.15 to 20 degrees posterior d.5 to 7 degrees posterior Where is bile formed? a.Gallbladder b.Duodenal mucosa c.Liver d.Pancreas Where is the contrast media instilled during a myelogram? a.Subarachnoid space b.Epidural space c.Subdural space d.Spinal cord In which of the four major quadrants of the abdomen would the cecum be found? a.Right upper quadrant b.Left upper quadrant c.Right lower quadrant d.Left lower quadrant Which is the most commonly fractured carpal bone? a.Lunate b.Trapezium c.Scaphoid d.Hamate Select the imaging system that provides the highest beam quality. • a.single-phase, half-wave rectified • b.high frequency • c.three-phase, twelve-pulse • d.single-phase, full-wave rectified