Welcome to your Radiography Name: Email: [A procedure used to evaluate biliary and pancreatic pathologic conditions with an endoscope is:] Ultrasound MRI ERCP IVP None . [X-rays travel as bundles of energy called:] Protons Phasers Particles Photons None . [Air must not be injected when performing venipuncture because:] An air embolus would form and may become fatal to the patient Most examinations requiring injection are not air contrast studies It would interfere with the iodine It would prevent visualization of the iodine None . [The unit of measurement that is determined by measuring ions produced in air as radiation passes through it is the:] Becquerel Gray Air kerma Sievert None . [The amount of receptor exposure is controlled primarily by:] kVp Focal spot size AEC mAs None . [Grid frequency is defined as:] The same as grid ratio The amount of lead in the grid (expressed in terms of focusing distance) How often a grid is used The amount of lead in the grid (expressed as the number of lead strips per inch) None . [Single-phase, full-wave rectification produces:] Direct current Pulsating direct current Pulsating direct current with 120 pulses per second Pulsating direct current with 120 pulses per second and 100% ripple None . [The filament is kept warm by:] A standby current from the time the x-ray machine is turned on Insulating oil Lead housing Current produced only during exposures None . [Patient transfers from cart to x-ray table and back to cart should be performed:] By the radiographer alone if the patient is ambulatory By two or more radiographers to ensure patient and radiographer safety By the radiographer alone if the department is short staffed By the radiographer alone so as not to frighten the patient None . [This item is used to restore the heart to normal rhythm:] Crash cart Suction unit Defibrillator Sphygmomanometer None . [What follows an allergic reaction to foreign proteins?] Anaphylaxis Cardiogenic shock Hypovolemic shock Septic shock None . [The result of thermionic emission is a(n):] Recoil electron Electron cloud Scattered photon Characteristic photon None . [For the lateral projection of the scapula, which of the following statements are true? 1. Patient should be upright to reduce pain 2. Patient is positioned obliquely with unaffected scapula centered to the image receptor 3. The body is adjusted by palpating axillary and vertebral borders of the scapula so that the scapula is lateral 4. Scapula must be projected free of the rib cage] 1, 3, 4 2, 3 3, 4 2, 3, 4 None . [Devices in the x-ray circuit that operate on the principle of mutual induction are called:] Rectifiers Generators Timers Transformers None . [Which of the following is (are) located just below the head of the humerus?] Greater and lesser tubercles Bicipital groove Capitulum Trochlea None . [Effects of radiation where the probability of occurrence, not severity of occurrence, is proportional to the dose are called:] Stochastic effects Deterministic effects Genetic effects Somatic effects None . [Which of the following is a legitimate contraindication `to the use of iodinated contrast media?] Allergy to seafood Known sensitivity to proteins Previous sensitivity to contrast agents Allergy to any medications None . [The structure designated as V is the fig.] Glenoid fossa Acromion Coronoid process Coracoid process None Comment . [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 . [A feature of fluoroscopic x-ray machines that automatically adjusts kVp and mA so as to maintain image brightness for necessary image quality is called:] Automatic imaging Automatic brightness control (ABC) Automatic image processing Constant exposure output None . [Gonadal shields may reduce exposure to female gonads by up to:] 50% 95% 10% 75% None . [Which of the following would be applicable to radiation therapy?] Inverse square law Law of Bergonie and Tribondeau Reciprocity law Ohm’s law None . [The strength of the magnetic fields in a transformer is increased by:] Coiling the wires and placing them in adjoining machines Coiling the wires and letting their magnetic fields overlap Keeping the wires very straight, increasing their effectiveness Replacing the wires with diodes None . [The abbreviation that means “history” is:] hx bx hs MI None . [What is caused by an infection that results in extremely low blood pressure?] Anaphylaxis Cardiogenic shock Hypovolemic shock Septic shock None . [CR cassettes should be erased at least:] Every 24 hours Every 48 hours Every 3 months Weekly None . [Written instructions for handling of biohazardous materials, safe use of the product, and clean up and disposal directions are called:] Package inserts HIPAA MSDS Biohazardous warning systems None . [When AEC is used, increasing the kVp:] increases the exposure time increases the image contrast decreases the exposure time has no effect on image quality None . [Graphs that show the relationship between radiation received and the organism’s response are called:] Response curves Exposure curves Dose-response curves Radiation-threshold curves None . [What describes a bowel obstruction caused by immobility of the bowel?] Diverticula Ulcerative colitis Pyloric stenosis Adynamic ileus None . Time's up
