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ex 2
| Question | Answer |
|---|---|
| Pt is prone, OML is perp to the IR, CR is angled 15 deg caudad, and exits nasion. What projecton is this? | Caldwell |
| If you come across a sterile tray has no expiration date on it, what should you do? | consider it unsterile |
| What is correct when moving a heavy object from one side of your body to the other? | turn your feet |
| How would a stain on CR imaging plate appear on a radiograph? | lighter |
| During myelography, where is the contrast medium injected? | subarachnoid space |
| How must the patients arm be positioned for a good AP projection of the scapula? | abducted |
| When radiographing the ribs below the diaphragm how should the patient suspend respiration? | expiration |
| Which of the following devices allows the inspection of the stomach and duodenum by illuminating their internal linings? | endoscope |
| Luminance refers to the brightness of the light emitted from an image display monitor. What are the SI units for luminance? | Candela per square meter |
| How many degrees, and in what direction should the xray tube be angled for an AP projection of the C Spine | 20 deg cephalad |
| What Upper GI position will best demonstrate the plours and duodenal loop? | 45 deg RAO |
| The spinal cord passes through the _____ foramen? | vertebral |
| What is it called when a person has a drop in blood pressure when they stand up? | orthostatic hypostension |
| After radiographing a pt who has been drinking, you write on the req that he was drunk. Now you could be sued for? | defamation of character |
| Which is lower left or the right kidney? | Right is lower because of the liver |
| What is the normal range for systolic pressure in an adult? | 110-140 mm Hg |
| medication reconciliation refers to? | reviewing the medications a patient is taking and determining if there are any concerns for administering contrast media |
| What are the appropriate breathing instructions to a patient for an AP projection of the T-Spine? | Take in a deep breath, let your breath out an hold your breath out |
| If a pt is known to be infected with a pathogenic organism or communicable disease which of the following is applied? | transmission-based precautions |
| Where would you expect to find the largest number of microorganisms? | On the floor of the radiographic room |
| If a moble unit chest radiograph CANNOT be done erect, what is the next best position? | Supine |
| What is the radiographic examination of the menisci called? | knee arthrography |
| What is a pathogen? | an organism capable of causing disease |
| What is the purpose of the breathing technique for an RAO sternum? | To blur the overlying lung markings and ribs |
| Which of the following descirbes a long scale of contrast? | Low contrast |
| How is the CR angled for an axial projection of the calcaneus? | 40 deg cephalad |
| How is the CR angled for an axial projection of the calcaneus? | 40 deg cephalad |
| What is used to detect quantum noise in a digital image? | Exaluate exposure indicator numbers and Magnify the digital image |
| An image matrix of 1024 columns and 1024 rows consists of how many cells? | 1,048,576 |
| Injection of contrast media is in the radiographer's "scope of practice". What should be done to prevent extravasation? | Immobilize the injection site and pull back on plunger to test if needle is in the vein |
| What projections are the most common during lumbar myelography? | PA and cross table lateral |
| It is important for a radiographer to recongize shock. What blood pressure would indicate the patient is in shock? | 90/45 |
| What projection will best demonstrate cartilage degeneration in the knee joint? | AP wght-bearing |
| What type of joint is freely movable? | diarthrodial |
| AP mortise projection has what degree of medial rotation? | 15-20 deg |
| Why are the paranasal sinuses imaged in the erect position? | to demonstrate air fluid levels |
| Which of the following devices can be used for the long term storage of digital radiographic images? | Magnetic tapes, optical disks, CD's |
| What is the name of the fossa that separates the medical and lateral femoral condyles posteriorly? | Intercondyloid fossa |
| How does saturation appear on a digital image? | black, no anatomical details are visible |
| An AP lordotic projection of the chest was done correctly if which of the following is visualized on the radiograph? | The clavicles are projected superior to the apices |
| Bone age in children can be assessed by imaging which of the following anatomical areas? | Left Hand and wrist |
| What will cause elongation of the object when an object is horizontal? | Angling the CR and Angling the IR |
| What is legally required on a radiographic image? | Pt complete name, date, and right or left marker |
| What does NOT pass through the diaphram? | trachea |
| What artifact appears in a digital image due to the incomplete erasure of the imaging plate? | ghost image |
| What usually determines how a patient feels about his radiography procedure? | the communication skills of the radiographer |
| Which of the following is essential when trying to demonstrate soft tissue? | low kVp |
| For a lateral position of the lumbosacral vertebrae, the CR enters on the midcoronal plane at the level of the? | crest of the ilium |
| Which of the following must be done to correctly position the skull for a SMV projection? | IOML parallel to the IR, CR centered midway btwn the angles of the mandible, MSP perp to the IR |
| The merchant bilateral method is used to demonstrate which of the following anatomical parts? | patellae |
| When preparing a technique chart, which of the following factors must be considered? | mAs & kVP, screen speed and grid ratio, and FSS and SID |
| What position could be used to demonstrate a calcified abdominal aortic aneurysm? | lateral |
| What is the kVp range for radiographing a sthenic patients' ribs above the diphragm? | 65-70 kVp |
| To reduce scatter radiation, thereby producing higher contrast, which of the following must be increased? | beam restriction |
| If a pt conulses in the radiology should do which of the following? | prevent injury to the pt |
| A detector size of 100 microns will produce how much spatial resoultion? | 5 line pairs per millimeter |
| The misrepresentation of the size or shape of an object is the definition for which of the following? | distortion |
| Who is NOT protected by the patients bill of rights? | pediatric patients |
| Which of the following projecions would best demonstrate the glenoid cavity? | 35-45 deg oblique with affected side closest to the IR |
| If a patients IV site becomes puffy and swollen what should the radiographer do? | clamp of the IV |
| Contrast that is a result of anatomical and pathological | subject contrast |
| What articulates with the clavicle? | scapula and sternum |
| Detector fox is also referred to as? | dark noise |
| The amt of IV iodinated contrast given to young childer should be based on their? | weight |
| What myst you do if a patient refuses to continue with a radiographic procedure? | stop and take the patient back to their room |
| What is the correct automatic film processing cycle? | develop, fix, wash, dry |
| How long can a latent image remain "store" in the phosphor layer of a photostimulable phosphor plate? | 24 hrs |
| GFR stands for: | glomerular filtration rate |
| which of the following positions would be used to demonstrate the range of motion of the C spine? | Flexion and extension laterals |
| Outdated film may show which of the following problems? | loss of contrast |
| Which position of the elbow demonstrates process free of superimposition? | lateral |
| When examining the clavicle, how is the central ray directed for an AP axial projection? | Cephalad |
| Which tarsal bone articulates with the 3rd netatarsal? | lateral 3rd cuneiform |
| Which of the following describes a radiographic density? | underexposed |
| which of the following occurs when changing from a 9" mode to a 6" mode in a multifield image intensifier? | resolution increases |
| When iodinated contrast media is introduced, what must be done to insure proper radiographic quality? | kVp must not exceed 70 kVp |
| Excessive noise suppression of a digital image can result in which of the following problems? | loss of spatial resolution |
| What is the most accurate names for body types? | Thoracic, abdominal, pelvic |
| Data that has been stored and now cannot be read is known as? | corrupt data |
| grids used for CR must have a grid frequency higher than? | 150 lines per inch |
| What is the purpose of a step-up transformer? | increase the voltage |
| Which of the following can occur when the collimator's light field does NOR match the radiation field? | Collimating off critical anatomy Exposing the patient unnecessarily |
| For a patient needing the following radiographic exams, which one of the them should be scheduled last? | Upper GI series |
| Which of the following may be a reason for radiographicing the upper airway of an infant? | Foregin body evaluate enlarged thymus gland Epiglottitis |
| In film screen radiography, mAs is the controlling facto for density and kVp is the controlling factor for contrast, which of the following is considered the controlling factor for recorded detail? | Focal spot size |
| Which of the following determines the number of shades of gray that can be displayed by a pixel? | bit depth |
| How would cutting the SID in half effect the intensity of the xray beam? | It would increase four times |
| A patient can only agree to a procedure after specific information concerning that procedure is provided by his/her physician. This is known as what? | informed consent |
| Which of the following grid ratios would produce the shortest scale of contrast? | 12:1 |
| To obtain a nephrogram, the radiographer would have to take a radiograph how long after injection of the contrast media? | 1 min |
| Which of the following increases with an increase in beam filtration? | xray quality |
| Which of the following is the result of using the magnified mode of a multifield, image intensification tube? | Better visualization of small objects Better resolution of objects |
| WHat is the best way to control a patients involuntary motion? | the shortest possible exposure time |
| which of the following tissues will absorb the most xrays? | bone |
| The geometric factors are associated with which radiographic qualities? | recorded detail/spatial resolution |
| An increase in mA will affect which of the following film-screen radiographic qualities? | density |
| When using computed radiography, a smaller imaging plate may _____ than a larger imaging plate? | have better spatial resolution |
| A left wrist is ordered but the right wrist is bruised and swollen. What would you do? | question the doctor who ordered the exam |
| While positioning a pt for a PA chest he tells you he has had his left lung removed. Which potocell would you activate on the AEC? | the right cell |
| The red arrow is pointing at what anatomical structure? | cuboid |
| Which of the following digital imaging controls allows the radiographer to adjust the image brightness? | Window level |
| Which of the following structures will be demonstrated if the pt is placed in a 25-30 deg LPO position and the CR is directed 1" medially to the right ASIS? | right sacroiliac joint |
| A magnifying glass can be used to evaluate which of the followin monitor qualities? | spatial resolution |
| Which of the following techniquies would be most appropriate for warming up an xray tube? | 50 mA, 2 sec, 70 kVp, large focal spot |
| Radiation dosimeters operate on which of the following xray characteristics? | Ionization |
| Radiation dosimeters operate on which of the following xray characteristics? | ionization |
| Where is the ionization chamber located in an automatic exposure control (AEC)? | between the patient and the image receptor |
| If the software CANNOT recongize three collimated borders which of the following would most likely occur? | the image would be too dark |
| Which of the following is a measure of how efficiently xrays are captured by a flat panel detector and converted to digital data? | detective quatum efficiency (DQE) |
| What is the annual equivalent dose limits for the public? | 5.0 mSc (.50 rem) / year |
| One of the most common problems occuring with automatic film processors is the film coming out wet and sticky. What is the cause for this problem? | Weak hardener in the fixer |
| Which of the following is necessary when radiographing a forearm in the AP projection? | Hand mys be supinated |
| Which of the following would be contraindication for using barium sulfate for an upper GI series? | Possible perforated ulcer |
| Which of the following people are authorized to order radiographic examinations? | physician or radiologist |
| A ______ most accurately describes a large amt of pharmaceutical preparation that is injected at one time? | bolus |
| According to the Code of Federal regulations Title 21, which of the following is a fluoroscopic primary protective barrier? | imaging assembly |
| What type of distortion results from an increased OID? | size |
| Which of the following materials is used in a flat panel detector to convert xray photons into an electrical charge? | amorphous selenium |
| Which of the following types of radiation has characteristics identical to xrays? | gamma |
| What type of raditation is produced when high speed electrons are stopped or decelerated, changing their kinetic energy to xrays? | Brems |
| For an axiolateral position of the hip, where is the CR directed? | perp to the neck of the femur |
| Which of the following could be used to test the kVp accuracy of a radiographic generator? | half-value layer |
| Which of the following fluoroscopic protective devices requires more than .25 mm Pb equivalent? | fluro protective spron |
| The trochlea is part of which of the following bones? | humerus |
| What is the cumulative dose limit for a 28 yr old radiographer? | 280 mSv |
| In film-screen radiography, an increase in SID will affect a radiograph in which of the following ways? | Decrease radiographic density, Increase recorded detail |
| Which part of the xray tube becomes negatively charged during the exposure? | cathode |
| Nausea, vomiting and a headache are reactions to contrast medial that are considered? | mild |
| According to the NCRP report 160 which of the following modalities typically exposes the pt to the highest dose? | interventional fluoro |
| When using CR, how can the radiographer know what radiation dose was received by the photostimulable phosphor plate? | exposure indicator number |
| What is the best protection from radiation? | Distance |
| Which of the following is the unit of exposure dose of gamma or xrays? | roentgen |
| Protective aprons protect the user from which of the following sources of radiation? | Scatter radiation |
| How thick should the lead be in a wall of a diagnostic xray room? | 1/16" |
| Where should the fetal dosimeter be placed on a pregnant technologist? | at waist level, under the protective apron |
| If a radiographer recevies an exposure of 8 mSv when 3 ft from the patient, how many will he receive at 6 ft? | 2 mSv |
| What are xrays cakked that have undergone a change in direction after interactions with atoms? | scatter |
| What is the device on a fluro unit called that continually adjusts to provide the max brightness of the image at the min exposure to the pt? | ABC automatic brightness control |
| 155 | 155 |
Created by:
erikasmith28