New Quiz 19 Dec Welcome to your Radiography Name: Email: [What progressive condition is marked by diminished capabilities of inspiration and expiration?] Atelectasis Bronchogenic carcinoma COPD Emphysema None . [For an AP projection of the elbow, which of the following statements are true? 1. The forearm and humerus should be at right angles 2. The central ray is directed perpendicular to the joint 3. The forearm and humerus should be parallel to the table 4. The hand must be pronated 5. The patient may have to lean laterally to ensure AP alignment] 1, 2 2, 3, 5 1, 4 2, 3, 4, 5 None . [Which of the following means there is no safe level of radiation and the response to the radiation is directly proportional to the dose received?] Nonlinear-nonthreshold effect Linear-nonthreshold effect Linear-threshold effect Nonlinear-threshold effect None . [Which of the following anatomic structures is not demonstrated on a KUB? fig. ] Bone structure of the pelvis Inferior ribs Psoas muscles Minor calyces None Comment . [Radial deviation is synonymous with fig. ] Radial flexion Radial deviation Ulnar flexion Dorsiflexion None Comment . [The structure designated as II is the Fig. ] Coronoid fossa Olecranon Semilunar notch Radial head None Comment . [Structure A is the fig. ] Pedicle Spinous process Transverse process Lamina None Comment . [A “typical” skull would be described as:] Synarthroses Amphiarthroses Diarthroses Mesocephalic None . [A spine describes a:] Prominence Sharp prominence Tubercle Tuberosity None . [The primary purpose of radiation safety practices is to] Limit occupational exposure Limit the introduction of mutations into the population Limit long-term somatic effects Limit short-term somatic effects None . [A material that absorbs x-ray energy and emits part of that energy as visible light is called:] Diode Scintillator TFT Cathode None . [The law governing patient confidentiality is abbreviated:] CDC HHS ALARA HIPAA None . [Which of the following structures is most distal? fig.] Ascending colon Cecum Descending colon Sigmoid None Comment . [Vectors may be:] Insects Persons Plants Objects None . [A radiation dose that if received by the entire population would cause the same genetic injury as the total of doses received by the members actually being exposed is called:] Genetically significant dose Doubling dose Mean marrow dose Genetic dose None . [The structure designated as IV is the fig. ] Coracoid process Coronoid process Scapular notch Glenoid fossa None Comment . [For lateral projection of the facial bones, the central ray enters at the:] Glabella Medial surface of the zygomatic bone Medial surface of the nasal bone Lateral surface of the zygomatic bone None . [When the AP oblique projection is performed for the lumbar vertebrae, the side of interest is:] Farthest from the image receptor Closest to the image receptor Rotated 30 degrees Rotated 20 degrees None . [Which of the following results in total absorption of an incident x-ray photon?] Photoelectric interaction Compton interaction Classic scatter Pair production None . [The x-ray beam changes as it travels through the patient by a process called:] Filtration Attenuation Electrification Annihilation None . [Which of the following grid errors would result in an image that shows decreased density more to one side than the other?] Upside down Off-level Lateral decentering Grid-focus decentering None . [What causes blood to pool in peripheral vessels?] Anaphylaxis Cardiogenic shock Hypovolemic shock Neurogenic shock None . [X-ray beam quality is expressed in terms of:] Half-value layer Exposure linearity Exposure reproducibility mAs None . [What condition is a collapse of lung tissue and is harder to penetrate?] Atelectasis Bronchogenic carcinoma COPD Emphysema None . [Question content] Talipes Colle fracture Boxer fracture Ankylosing spondylitis None . [When the mandibular body is radiographed with the patient in the SMV position:] The head and neck are extended and resting on the chin The MSP is parallel with the IR. The IOML is perpendicular with the plane of the image receptor, the head and neck are resting on the vertex, and the MSP is perpendicular to the IR The IOML is parallel with the plane of the image receptor, the head is resting on the vertex, and the MSP is perpendicular to the IR None . [Linear energy transfer:] Is the same for all types of radiation Is the same for wave and particulate radiations used in diagnosis and treatment Occurs only during x-ray procedures Varies for different types of radiation None . [For AP projection of the thoracic spine, the central ray is directed:] 5 degrees cephalad Parallel to T7 3 to 4 degrees caudad Perpendicular to T7 None . [For a PA projection of the hand, the central ray is centered:] Perpendicular to the first metacarpophalangeal joint Perpendicular to the third metatarsophalangeal joint Parallel to the third metacarpophalangeal joint Perpendicular to the third metacarpophalangeal joint None . [Smoothing provides:] Higher spatial resolution Equalization Evenness in brightness Higher contrast resolution None . Time's up
