Term
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Definition
| Amount of radiation in the air |
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Term
| Radiation Absorbed Dose RAD |
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Definition
| Amount absorbed by the body Ex-radiation therapy |
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Term
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Definition
| Amount of dose absorbed by radiographers |
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Term
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Definition
| x-rays have the potential to knock out an electron from its valence shell.Now there is a vacancy in the K shell that must be filled. An electron from a shell lower must fill that spot |
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Term
| Law of Bergonie & Tribondeau |
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Definition
| cell sensitivity to radiation exposure depends on four characteristics of the cell 1. age 2. differentiation 3. metabolic rate 4. mitotic rate |
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Term
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Definition
| stricking, molecule in body, DNA mutations |
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Term
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Definition
| affect water molecule 90% free radicals |
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Term
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Definition
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Term
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Definition
Somatic- affect body
Genetic- damaged DNA passed to offsprings |
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Term
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Definition
| will definitely happen at certain threshold |
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Term
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Definition
| more radiation the higher the chances |
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Term
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Definition
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Term
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Definition
| As Low As Reasonably Achievable |
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Term
| Dose limis for radiographers |
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Definition
5 REM per year
lifetime 1Xage |
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Term
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Definition
| first 10 days of menstrual cycle |
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Term
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Definition
| Health Insurance Portability and Accountability Act |
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Term
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Definition
Discovered x-rays on Nov 8 1895
first x-ray was of his wive's hand |
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Term
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Definition
| contains the vaccum to allow the electrons to flow. made to withstand very high temps, made of pyrex |
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Term
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Definition
| part of the glass envelope where x-rays pass through to the patient. made of thinner glass |
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Term
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Definition
Tube housing contains oil
Aids in electrical insulation
Helps in keeping the tube cool |
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Term
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Definition
Negative terminal (electrode) of the tube
Contains a focusing cup (ring) with a negative charge that surrounds the filament |
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Term
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Definition
Positive terminal of the tube
Tungsten has high atomic # giving it a high melting point
Attached to a rotor that Disk rotates |
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Term
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Definition
Releases electrons and filament is heated up 2,000 degrees C
Anode begins to rotate 3,000-20,000 Rpm
Anode is hit by electrons then x-rays are produced |
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Term
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Definition
Limits x-ray field size to size of interest
Limit radiation dose and to reduce scatter x-rays |
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Term
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Definition
Main purpose is to absorb scatter x-rays
primary x-rays are allowed to pass through, lead strips absorb scatter x-rays |
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Term
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Definition
controls amount of current going through the filament
curren=heat=electrons aka-thermonic emission |
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Term
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Definition
controls the length of exposure
measured in seconds or milliseconds |
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Term
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Definition
mAXseconds
Determines the QUANTITY of x-rays produced |
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Term
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Definition
controls the energy penetrating power of the x-rays
Determines the QUALITY of x-rays produced
more dense body parts more kVp |
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Term
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Definition
1.Air/Gas
2.Fat
3. Soft tissue
4.Bones
5.Contrast/Metal |
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Term
| SID (Source to Image Distance) |
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Definition
usually 40in
72in used for some upright exams |
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Term
| OID (Object to Image Distance) |
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Definition
place part as close to IR as possible
big OID=magnification |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| observations made by the radiographer |
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Term
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Definition
| what the patient is feeling |
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Term
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Definition
| Personal Protective Equipment |
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Term
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Definition
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Term
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Definition
| x-rays absorbed will show |
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Term
| Information to include on the final image |
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Definition
1.Facility
2.Patient name
3.DOB age
4.Date and time of the exam |
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Term
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Definition
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Term
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Definition
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Term
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Definition
tells you how much exposure
underexposed too light
overexposed too dark |
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Term
| normal range for temperature |
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
| normal range for respiration |
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Definition
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Term
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Definition
| more than 20 breaths per min |
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Term
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Definition
| less than 12 breaths per min |
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Term
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Definition
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Term
| normal range for blood pressure |
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
| instruments used to measure blood pressure |
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Definition
| sphygmomanometer and stethoscope |
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Term
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Definition
| divides body into equal left and right halves, parallel to the IR (when in posterior or anterior position) |
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Term
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Definition
| divides body into equal anterior/posterior halves, perpendicular to IR (when in posterior or anterior position) |
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