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mock 9
| Question | Answer |
|---|---|
| In digital systems, the | smaller the pixel pitch, the better the spatial resolution. |
| Which 3 of these drugs have adrenergic/vasoconstrictor effects? | Epinephrine/Adrenalin, Isoproterenol/Isuprel, Norepinephrine bitartrate/Levophed |
| The lower GI tract includes which of the following structures? | sigmoid, cecum, right colic flexure |
| An anterior dislocation of the humeral head is demonstrated on a scapular Y projection inferior to the | Coracoid process |
| Which of the following is NOT true of mAs in digital systems? | mAs no longer controls the quantity of radiation that forms the image |
| How do changes in pixel density and pixel pitch impact spatial resolution? | Increased pixel density decreases spatial resolution; decreased pixel pitch increases spatial resolution. |
| Which portion of the following equation represents the degree of radiosensitivity of the irradiated organ/tissue? | Wt |
| The Grashey method requires what anatomic part, of the affected side, to be parallel to the IR? | Scapula |
| Which of the following generally does NOT require a change in exposure factors? | fiberglass |
| An AP medial oblique projection of the elbow will demonstrate which of the following anatomic parts free of superimposition? | coronoid process |
| Regarding surgical sterile technique, gowns are considered sterile in which of the following areas? | in the front from the waist up and only the sleeves |
| X-ray tubes are surrounded with oil | in order to conduct heat away from the anode and for insulation |
| The general rule(s) for adjusting technical factors when radiographing an adult extremity enclosed in full plaster cast include | increase kV 12 to 15% double the mAs |
| What is the effect of TFT DEL size in cassetteless digital imaging? | The smaller the DEL size, the better the spatial resolution |
| When stimulated by x-ray exposure, PSPs europium-activated barium fluorohalide phosphors can react by | emitting some light and storing some energy as the latent image. |
| Which projection of the elbow will cause superimposition of the proximal ulna by the radial head and neck? | AP oblique with medial rotation |
| How do changes in pixel density and pixel pitch impact spatial resolution? | Increased pixel density increases spatial resolution; decreased pixel pitch increases spatial resolution. |
| Rapid, irregular and ineffective contraction of atrial and ventricular cardiac muscle fibers is termed | fibrillation |
| For a lateral projection of the cervical spine, the MSP and the IR should be | parallel |
| Example of radiation-induced conditions that follow a linear nonthreshold dose-response relationship include? | genetic effects, radiation-induced cancer, leukemia |
| The best term to describe both early and late effects due to excessive radiation exposure to specific tissues in the body, such as the skin and the lens of the eye, are often identified as what type of effects? | Deterministic |
| Deterministic effects (also known as tissue effects) occur only when a specific dose of radiation is reached | |
| Probabilistic and stochastic effects both refer to effects that occur randomly and do not require a specific or excessive dose of radiation | |
| To help you to remember deterministic effects, remember DOSE DETERMINES if DETERMINISTIC effects may occur. A dose of more than 2 Gy significantly increases the risk of the occurrence of tissue effects | |
| The typical vertebra includes which of the following processes? | superior articular, spinous , transverse |
| Which of the following statements regarding quantum mottle/noise is most accurate? | As receptor exposure decreases, the likelihood of quantum noise increases. |
| In capacitor/condenser discharge mobile units | the kV decreases during the exposure. |
| The Grashey method requires what anatomic part, of the affected side, to be parallel to the IR? | scapula |
| In which type of monitoring device do photons release electrons by their interaction with air? | pocket dosimeter |
| To make a patient as comfortable as possible during a single-contrast barium enema (BE) the radiographer should | instruct the patient to relax the abdominal muscles to prevent intra-abdominal pressure instruct the patient to concentrate on breathing deeply to reduce colonic spasm |
| : An AP medial oblique projection of the elbow will demonstrate which of the following anatomic parts free of superimposition? | Coronoid process |
| The effects of radiation that are directly related to the dose received, which can occur months or years after exposure, are called | acute deterministic somatic effects |
| The carpal canal/tunnel, tangential inferosuperior, projection of the wrist requires a CR angulation of how many degrees to the long axis of hand? | 25° to 30° |
| The rotator cuff is composed of which of the following muscles? | Supraspinatus, Infraspinatus, Teres minor, Subscapularis |
| Which of the following is NOT one of the auditory ossicles? | Cochlea |
| For a lateral projection of the thoracic spine, what is the relationship of the mid-sagittal plane to the image receptor? | parallel |
| select the one inncorrect statement from those listed below | The RAO is used to project the sternum superimposed on the lungs, and for uniform exposure. |
| The lower GI tract includes which of the following structures? | Sigmoid colon, Cecum, right colic flexure |
| The advantages of coupling a CCD with the image intensifier output phosphor include | less spatial distortion higher DQE |
| Lumbar zygapophyseal articulations are demonstrated closest to the IR in the | RPO/ LPO positions |
| : The length of the latent period portion of acute radiation syndrome decreases as radiation exposure | increases |
| The dorsoplantar axial projection of the calcaneus requires that the CR be directed how many degrees in the caudad direction to the plantar surface? | 40* |
| Which of the following is the factor of choice to adjust/correct image receptor exposure? | mAs |
| Which of the following is NOT true of mAs in digital systems? | mAs no longer controls the quantity of radiation that forms the image |
| Which two bones separate the oral and nasal cavities? | the Two maxillae |
| What is the term used to describe restriction of patient movement to ensure safety? | restraint |
| An RAO sternum on a patient having a deep, barrel-shaped chest will require what level of obliquity compared to an RAO sternum on a patient having a shallow chest | slightly less |
| The type of acute radiation syndrome (ARS) that requires the least amount of ionizing radiation dose to occur is | hematopoietic |
| High-level control fluoroscopic tabletop exposure must not exceed | 200 mGya/min |
| x-ray beam quality | kV |
| What unit is used to describe occupational exposure? | Sv (Sievert) |
| Which of the following account(s) for an x-ray beam's heterogeneity? | Incident electrons interacting with several layers of tungsten target atoms Energy differences among incident electrons Electrons moving to fill different shell vacancies |
| What is the normal adult systolic range and normal adult diastolic range? | 90 to 120; 60 to 80 |
| Leg = inferior articular process; ear = superior articular process; eye = pedicle; nose = transverse process; neck = pars interarticularis | The correctly positioned oblique lumbar spine shows the “Scottie Dog” appearance. Match the following bony parts to which part of the “Scottie Dog” each represents: |
| Which type of body habitus is likely to have the most long and narrow lung area? | asthenic |
| find the incorrect one | D The storage screens typically used in CR contain cesium iodide |
| Which of the major interactions between x-ray photons and tissue cells is a major contributor to patient dose? | Photoelectric effect |
| Which 3 of the following are mild latex allergy reactions? | skin redness, hives, itching |
| : Regarding surgical sterile technique, gowns are considered sterile in which of the following areas? | In the front from waist up and only the sleeves |
| The alveolar process can be found on which bone(s)? 1. Mandible 2. Maxilla | 1. Mandible 2. Maxilla |
| Typical features of the normal male/android pelvis include which of the following? | Narrow pelvic inlet Pubic angle less than 90° |
| Q 55: What is the term used to describe the extent/number of exposure intensities an image receptor can accurately detect? | Dynamic range |
| : The short, thick processes that project posteriorly from the vertebral body are the | pedicles |
| : Which of the following technical factors will cause no change in image receptor exposure? | focal spot size |
| What is the name of a plane that is parallel to the mid-coronal plane? | coronal plane |
| the purpose of personnel monitoring is | evaluate the effectiveness of personal radiation protection |
| Which of the following is a type of secondary radiation? | Both scattered and leakage radiation are types of secondary radiation |
| What type of effects are described as: “those biologic somatic effects of ionizing radiation that exhibit a threshold dose below which the effect does not normally occur and above which the severity of the biologic damage increases”? | tissue effects |
| The coronoid process should be visualized in profile in which of the following positions? | Medial oblique elbow |
| Manipulation of grey level values is associated with | lookup table and window width |
| If the petrous pyramids are seen superimposed on the inferior aspect of the maxillary sinuses in the parietoacanthial projection, how should the technologist adjust the chin? | elevate, extend |
Created by:
knabb87