Welcome to your Radiography Name: Email: [Smoothing software may result in:] Enhanced fine detail Less distortion Loss of fine detail Increased distortion None . [The study of contrast agents, their administration, and possible reactions fall under the category of:] Nursing Pharmacology Emergency care Respiratory care 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 . [Frequency is defined as:] Synonymous with wavelength The number of waves passing a point per unit time The number of waves striking the patient The number of exposures needed during an exam None . [Diabetic patients should be scheduled:] Later because of their need for insulin Early because of their need for insulin Just before mealtime Just after mealtime None . [Which of the following sets of exposure factors would produce an image with the best spatial resolution?] 60 mAs, 80 kVp, 72-inch SID, 4-inch OID 30 mAs, 92 kVp, 40-inch SID, 4-inch OID 120 mAs, 92 kVp, 20-inch SID, 4-inch OID 15 mAs, 100 kVp, 40-inch SID, 4-inch OID None . [Causing a patient to become apprehensive of being injured is called:] Assault Battery False imprisonment Invasion of privacy None . [Most radiation-induced damage to cells occurs:] At diagnostic levels of radiation During fluoroscopy At doses of radiation much higher than doses used in radiography From background radiation None . [The greatest source of natural background radiation to humans is:] X-rays Delta rays Radon Radium None . [What type of joint permits motion in one plane only?] Ball-and-socket joint Pivot joint Hinge joint Saddle joint None . [The abbreviation that means “heart attack” is:] hx HA CVA MI None . [The SI unit of radioactivity is the:] Becquerel Gray Quality factor Curie None . [A spine describes a:] Prominence Sharp prominence Tubercle Tuberosity None . [Structure G is the fig.] Talus Navicular Cuboid Second or intermediate cuneiform None Comment . [Which of the following causes about 5% of the cellular response to radiation?] Direct effect Law of Bergonie and Tribondeau Target theory Indirect effect None . [When oxygen is administered to the patient, the usual flow rate is:] 3 to 5 L/second 5 L/hour 1 to 3 L/minute 3 to 5 L/minute None . [Exposure times longer than ____ minutes can lead to skin effects.] 5 1015 20 30 None . [The useful image acquisition area of an image receptor is:] Detector element Detector size TFT size Dynamic range None . [Which of the following describes a kidney stone?] Polycystic kidney disease Renal calculus Wilms tumor Renal cysts None . [The latest digital fluoroscopic units use:] Nonionizing radiation CR cassettes Conventional image intensifiers Flat panel plates similar to DR None . [Which of the following may be used for 3 months at a time?] TLD Film badge Pocket ionization chamber Geiger-Mueller detector None . [Grids that have strips angled to coincide with divergence of the x-ray beam are called:] Parallel Crosshatch Focused Rhombic None . [A tube used to feed a patient or to perform gastric suction is called a:] Tracheostomy tube Tracheotomy tube Nasogastric tube Ventilator tube None . [The accuracy of collimation at a 40-inch SID must be:] ± 4 inches ± 8⁄10 inch ± 1 inch ± 1⁄10 inch None . [A radiographer who is assisting with a sterile procedure but is not gloved and gowned:] Should stand between the physician and the sterile field Should carefully place all utensils needed in the center of the sterile field by dropping them after removing them from their packages May briefly come in contact with the sterile field to move utensils around May not have contact with the sterile field or anyone who is scrubbed in None . [Bit depth describes:] The available gray scale of an imaging system Window level Spatial resolution Optimum exposure needed for an imaging system None . [Needles and syringes must be disposed of in:] Lead containers Sharps containers Plastic bags Metal pans None . [Which of the following is used to measure blood pressure?] Crash cart Suction unit Defibrillator Sphygmomanometer None . [Because the x-ray tube requires DC to operate properly, what device is required in the x-ray circuit?] Autotransformer Step-up transformer Rectifier Falling load generator None . [Which of the following is located between the patient and the image receptor?] Anode mA meter Ionization chamber Falling load generator None . Time's up
