New Quiz 19 Dec Welcome to your Radiography Name: Email: [Structure A is the fig. ] Pedicle Spinous process Transverse process Lamina None Comment . [After a radiographer is gowned and gloved for a procedure,hands may not be placed:] Anywhere on the body because the gown andgloves are sterile Anywhere on the front or sides of the gown Anywhere on the table containing the sterile field Under the arms or on the sides or back of the gown None . [For a medial oblique position of the ankle, which of the following statements are true? 1. The leg and foot are rotated medially 2. The ankle is adjusted to a 90-degree angle 3. The medial rotation is adjusted to 45 degrees to show the mortise joint 4. The medial rotation is adjusted to 15 to 20 degrees to show the bony structure 5. The central ray is directed vertically midway between the malleoli] 1, 4 1, 5 1, 3, 4, 5 1, 2, 3, 4 None . [Which of the following bones has (have) no body?] Atlas Axis Thoracic vertebrae Lumbar vertebrae None . [The amount of radiation that causes the number of genetic mutations in a population to double is called the:] Threshold dose Doubling dose Mutagenic dose Genetic dose None . [What is the thickness of a thyroid shield that should be worn during fluoroscopy?] 0.10-mm lead equivalent 0.50-mm lead equivalent 0.50-mm aluminum equivalent 0.10-mm aluminum equivalent None . [If the angle on the anode is decreased, what effect is there on spatial resolution?] Increases Decreases No appreciable effect None . [A transformer that has more turns in the secondary coil than in the primary coil is called a:] Step-up transformer Solenoid Step-down transformer Filament transformer None . [Structure F is the fig. ] Hamate Trapezium Trapezoid Capitate None Comment . [An IR can be a source of infection through:] Droplet transmission Indirect contact Direct contact Airborne transmission None . [Which of the following is a symptom of shock?] Accelerated pulse; extremely warm skin Accelerated pulse; cool, clammy, pale skin Systolic pressure less than 50 mm Hg Accelerated pulse; cool, clammy, pale skin; systolic blood pressure less than 30 mm Hg None . [Structure H is the fig.] Hamate Trapezium Trapezoid Capitate None Comment . [What agency publishes radiation protection standards based on scientific research?] Nuclear Regulatory Commission (NRC) American Society of Radiologic Technologists (ASRT) National Council on Radiation Protection and Measurements (NCRP) Bureau of Radiological Health (BRH) None . [Venipuncture:] May be performed by a radiographer where allowed by state law May be performed by a nurse only Must be performed by a radiology supervisor May be performed by a radiographer under any circumstances None . [Which of the following describes the radiosensitivity of lymphocytes?] Low radiosensitivity Least radiosensitive cells in the body Most radiosensitive cells in the body There is no connection between lymphocytes and radiation exposure None . [Improper use of grids may result in an image artifact known as:] SNR Moiré pattern Elongation Foreshortening None . [The equation H/D describes:] Grid radius Contrast Grid ratio Reciprocity law None . [Calculating heat units for three-phase, 12-pulse equipment requires the use of _____ as a constant; calculating heat units for single-phase equipment requires the use of _____ as a constant; calculating heat units for three-phase, 6-pulse equipment requires the use of _____ as a constant.] 1.0, 1.35, 1.41 1.35, 1.0, 1.41 Calculating heat units does not require the use of a constant because all x-rays possess the same ionizing potential 1.41, 1.0, 1.35 None . [The prefix that means “above” is:] Hypo- Ex- Ect- Hyper- None . [Which of the following contains points that are enforceable?] ARRT Mission Statement ARRT Code of Ethics ARRT Examination Content Specifications ARRT Rules of Ethics 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 . [Given an original technique of 30 mAs and 80 kVp, which of the following would produce an image with double the receptor exposure?] 60 mAs, 90 kVp 30 mAs, 92 kVp 15 mAs, 80 kVp 30 mAs, 70 kVp None . [Added tube filtration should be adjusted by the radiographer:] To “harden” the x-ray beam To remove the soft rays from the x-ray beam To exercise radiation protection Never None . [If there is a decrease in source-to-object distance, what happens to spatial resolution?] Increase Decrease No appreciable effect None . [At the first indication of a contrast agent reaction, the radiographer should:] Immediately shout for help Stop the examination and obtain help so as not to alarm the patient Continue with the examination because most reactions turn out to be minor Call a respiratory or cardiac arrest code None . [Structure B is the fig.] Hamate Lunate Triquetral Scaphoid None Comment . [Thermionic emission occurs at the:] Anode Control panel Rectifier Cathode None . [When a quality control test is performed to ensure that the penetrating ability of the x-ray beam is accurate, the result must be within what amount of the control panel setting?] 2% of SID 4% 10% 50% None . [Which of the following takes into account the volume and types of examinations performed in the room?] Use factor Shielding factor Volume factor Workload None . [The accuracy of collimation at a 60-inch SID must be:] ± 6 inches ± 3 inches ± 2 inches ± 1.2 inches None . Time's up
