Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Final Exam Rad. Ess.
Radiography Essentials Final Exam
| Question | Answer |
|---|---|
| Medical X-rays were discovered by | William Roentgen |
| National organization that accredits Radiography School | JRCERT |
| This organization was formed to establish standards and exams to certify Radiologic Technologists | ARRT |
| The oldest and largest radiologic science professional organization is called | ASRT |
| The radiation that exits the opposite side of the patient to expose the film is called | Remnant Radiation |
| The term used to describe radiation that is absorbed by matter is | Attenuation |
| The "unseen" image that is contained in the film before it is processed is called the: | Latent Image |
| The radiation that exits the body in all directions and causes unwanted exposure on the Film as well as anyone who is in the room is called __________ radiation. | Scatter Radiation |
| The boxlike device attached under the tube housing that allows the limited operator to Vary the size of the radiation field is called the: | Collimator |
| The process of causing the Alternating Current (AC) to flow in one direction only is called ? | Rectification |
| What is the formula for determining mAs (milliampere-seconds)? | MA X TIME = MAS |
| The penetrating power of the xray beam is controlled by varying the ? | KVP |
| Which of the electron shells in the atom is most important for the production of x-rays | K Shell |
| What is a thin plate called that is placed between the patient and the IR when larger body parts are being radiographed to clean up the scatter? | GRID |
| The creation of the “space charge” or electron cloud in the x-ray tube produces what? | Thermionic Emission |
| The greatest portion of the x-ray beam is made up of | Bremstrahlung Radiation |
| The mA selector is a device called a/an: | Rheostat |
| The primary controller of radiographic density is: | MAS |
| The primary factor controlling radiographic contrast and x-ray penetration is: | KVP |
| High contrast produced by low kVp results in an image with what type of scale: | Short Scale |
| The “fuzzy” unsharpness at the edges of structures or body parts is called: | Penumbra |
| A term used to describe a grainy or mottled image is: | Quantum Mottle |
| The spectral sensitivity of the film must be matched to: | The color of light emitted by the screen |
| When using computed radiography (CR), where is the image stored until it is processed? | Photostimulable Phosphor Plate |
| What special type of filter should be used in the darkroom as a safelight? | GBX Filter |
| The wattage of the bulb in the darkroom safelight should be: | 7-15 Watts |
| The target of the x-ray tube is made up of what material? | Tungsten |
| The correct sequence of steps in an Automatic processor is: | Developer, Fixer, Wash, Dry |
| What 2 instruments are required for monitoring processor performance? | Densitometer and sensitometer |
| The negative effect of scatter radiation reaching the film is: | Fog |
| The effectiveness of a radiographic grid is determined by the: | Grid Ratio |
| What occurs when the grid is tilted? | Grid Cutoff |
| How should exposure factors be adjusted when there is the likelihood of motion? | Increase MA, decrease exposure time |
| When using the 15% Rule, to lower patient dose and to increase kVp, you must ________ the mAs by 2? | Divide |
| What is the conventional radiation unit to express radiation intensity in the air? | Roengten (R) |
| The conventional unit commonly used to report occupation dose to radiation workers in the US is the | REM |
| What is the conventional radiation unit that measures absorbed dose? | Radiation Absorbed Dose (RAD) |
| What is the guiding philosophy of radiation protection? (Acronym) | ALARA |
| The greatest cause of unnecessary radiation to patients that can be controlled by the LXMO | Repeat Exposures |
| What are the 3 principal methods used to protect limited operators from unnecessary radiation exposure? | Time, Distance, Shielding |
| What is the meaning of the term cephalic? | Angle Tube towards the head |
| What term refers to the back portion of the body or of a body part? | Posterior |
| Which plane divides the body into equal right and left halves? | Mid Sagittal Plane (MSP) |
| Which plane divides the body into equal anterior and posterior halves? | Coronol Plane |
| Which term describes the body position when the patient is lying on his or her back? | Supine |
| To achieve a prone position, the patient must be placed ____? | Remubant, on the stomach |
| What term is used to describe the path of the CR from the xray tube, through the patient and to the IR? | Projection |
| When setting a technique on a 90 year old woman with osteoporosis, you should : | Decrease KVP by 10 |
| Diagnostic films are owned by the: | Hospital/Clinic where xrays were taken |
| The term used that means a substance is more easily penetrated by the x-ray beam is called | Radiolucent |
| What are marks, exposures, or images on the radiograph that are not part of the intended image called? | Artifacts |
| A film that is too dark is said to be what? | Overexposed |
Created by:
cangeli2
Popular Radiology sets