review class test 1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| what is the name of a regulation established by a government body | law
🗑
|
||||
| what are generally accepted customs of right living called | morals
🗑
|
||||
| who established the code of ethics for RT's | ARRT
🗑
|
||||
| what do the initals DNR stand for | Do Not Resesitate
🗑
|
||||
| what are the initals for the law that protect patient confidentiality | HIPAA
🗑
|
||||
| if you chose for someone to make medical decisions for you in the event that you are unable to make decisions for yourself,that person is known as your | health care poxy
🗑
|
||||
| what is the fastest(least lag) form of television camera used in flouroscopy | CCD-Charge Coupled Device
🗑
|
||||
| the formula for the transformer law for voltage is | vs/vp=ns/np
🗑
|
||||
| the amount of scatter radiation versus the amount of "good" radiation that is grid lets pass is known as grid-------- | selectivity
🗑
|
||||
| restraining a patient without a doctors orders is considered | false imprisionment
🗑
|
||||
| if you physically force a patient to submit to an exam,you maybe arrested for---- | battery
🗑
|
||||
| the tendency of barium sufate to clump and come out of suspension is called | flocculation
🗑
|
||||
| when setting up for a myleogram and you have them sign a document agreeing to the procedure you are receiving | informed consent
🗑
|
||||
| what is the difference in medical and surgical asepsis? | medical-a reduction in bacteria, surgical-preventing contamination before,during & after surgery using sterile technique,(free of all bacteria)
🗑
|
||||
| what is the technique that is used to keep objects utilized in certain procedures free from contamination | sterilization
🗑
|
||||
| what is the general term used to describe any disease causing organism | pathogen
🗑
|
||||
| this is an infection resulting form the activities of physicians | iatrogenic
🗑
|
||||
| what is an infection obtained in the hospital | nosocomial
🗑
|
||||
| a mosquito that spreads malaria to a human is an example of a | vector
🗑
|
||||
| what are the 4 things needed to complete the cycle of infection? | host,infectious organism, method of transmission,and resevoir
🗑
|
||||
| if you do not disinfect a cassette after using it on a patient with a communicable disease you may spread the disease by the casssette serving as a | formite
🗑
|
||||
| what is the name of the form of precaution which is designed to prevent you from harming patients with surpressed immune systems | neutroponic isolation
🗑
|
||||
| what is the name for the practice of treating every patient as if they were potentially infectious | standard precautions
🗑
|
||||
| where is the center of gravity | S2
🗑
|
||||
| a sudden drop in blood pressure when a person goes form supine to erect is known as what | orthostatic hypotension
🗑
|
||||
| what type of shock does a person go into when having a allergic reaction to contrast | anaphylactic shock
🗑
|
||||
| what is urticaria | hives
🗑
|
||||
| name a side effect a patient may experience upon being injected with contrast media | metallic taste,warm feeling,sensation of urination
🗑
|
||||
| this is the term for a plant or animal that harbors or nourishes another organism | host
🗑
|
||||
| name a positive constrast agent | barium
🗑
|
||||
| is barium a water soluble contrast agent | No
🗑
|
||||
| name a side effect a patient may experience upon being injected with contrast media | metallic taste,warm feeling,sensation of urination
🗑
|
||||
| this is the term for a plant or animal that harbors or nourishes another organism | host
🗑
|
||||
| name a positive constrast agent | barium
🗑
|
||||
| is barium a water soluble contrast agent | No
🗑
|
||||
| what are the two categories of iodoniated constrast | ionic and non-ionic
🗑
|
||||
| define contraindication | a symptom or condition to give indication against the treatment
🗑
|
||||
| what is the term used to describe a sudden swelling at an injection site caused by the contrast leaking out the veins | infilltration,extravasation
🗑
|
||||
| what is another namefor the process of the boiling off of electrons at the filament | thermionic emission
🗑
|
||||
| what is another name for an electron cloud | space charge
🗑
|
||||
| what is the normal spinning speed for an anode to rearch before an xray can be taken | 3,000 RPM
🗑
|
||||
| what % of the electrons from the cathode are converted into heat upon striking the anode | 99%
🗑
|
||||
| what is the name of the area of the anode that is struck by electrons | target
🗑
|
||||
| x-ray photons are created at the anode through 2 different interactions | Characteristic and Brems
🗑
|
||||
| which of the above 2 target interactions are most common | brems
🗑
|
||||
| all interactions at the tube occur within millimeters of the surface at the target | 0.5
🗑
|
||||
| what is the distance b/w any 2 successive points an a wave known as | wavelength
🗑
|
||||
| what is the name for the number of waves that passes a particular point in a given time frame | frequency
🗑
|
||||
| what is the maximum height of the wave known ass | amplitude
🗑
|
||||
| are frequency and wavelength direct or inversely proportional? | inversely proportional
🗑
|
||||
| what are the 3 prime factors | kV,mAs,distance
🗑
|
||||
| what is the primary controlling factor for the quality of the beam | kV
🗑
|
||||
| what is the primary controlling factor for the quantity of the x-ray beam | mAs
🗑
|
||||
| what is the formula for the inverse square law | I1/I2=(D2/d1)2
🗑
|
||||
| what is the name of the x-ray beam after it exits the tube before striking the patient | primary beam
🗑
|
||||
| what is the name if the beam after hitting the patient before the IR | secondary, or remnant
🗑
|
||||
| this is an interaction with matter in which a weak x-ray photon puts an atom in an excited state,and the atom stabilized itself by relasing a secondary x-ray photon | coherent
🗑
|
||||
| this ia an interaction with matter in which an x-ray photon is absorbed while removing an inner shell electron from an atom.This creates a cascading effect as the atom fills the hole with an electron from the outer shell | photoelectric absorption
🗑
|
||||
| this is an interaction with matter in which an x-ray photon striks and removes an outer shell electron.The photon is then knocked in a different direction | compton
🗑
|
||||
| what are the 2 interactions with matter that create noticeable differences on your image | compton and photoelectric
🗑
|
||||
| what are the 2 types of interactions with matter that occur above diagnostic range | pair production and photodisintegration
🗑
|
||||
| what is the word used to describe the absorption of some x-rays as the photons pass through matter | attenuation
🗑
|
||||
| which end of the x-ray tube has a negative charge | cathode
🗑
|
||||
| what is the name for a tube that has 2 filaments | dual focus
🗑
|
||||
| what is the purpose for the anode rotating | to dissipate heat
🗑
|
||||
| of what 2 materials is the surface(target area)of the anode composed of | tugsten,molybedenum
🗑
|
||||
| the range of SIDs at which a focused grid maybe used is called | focus range
🗑
|
||||
| what part of the tube is actually located outside of the glass housing | stator
🗑
|
||||
| spatial resolution in film/screen systems is measure in----- | line pairs per millimeter
🗑
|
||||
| kV accuracy used to be measured with a------now a --------is used | pentrometer,digital meter
🗑
|
||||
| what is the preferred tool for measuring focal spot size | slit camera
🗑
|
||||
| what are the 3 priniciple parts of the x-ray system | tube,controlled console,and high voltage generator
🗑
|
||||
| what part of the x-ray circuit works by self induction | autotransformer
🗑
|
||||
| what is the most common form of exposure timer | AEC
🗑
|
||||
| what is the most mutual induction and has more coils in its secondary side then its primary side | step-up transformer
🗑
|
||||
| what changes the alternating current to direct current | rectifiers
🗑
|
||||
| what % voltage ripple does a single phase power have | 100%
🗑
|
||||
| what % voltage ripple does a high frequency generator have | 1%
🗑
|
||||
| what are the principle disadvantages of an aperture diaphragm | causes focal spot blur.(penumbra)& off focal radiation
🗑
|
||||
| what does PBL stand for | positive beam limitation
🗑
|
||||
| what does PBL do | collimates to size of the cassette
🗑
|
||||
| what type of x-ray is a form of dynamic imaging | fluoroscopy
🗑
|
||||
| the ratio of the square of the diameter of the input phosphor to the square of the diameter of the output phosphor is called | minification gain
🗑
|
||||
| the ratio of light photons at the output phosphor to the numbers of x-rays at the input phosphor is called | flux gain
🗑
|
||||
| what is the formula for brightness gain | BG-minification x flux
🗑
|
||||
| what is the input phosphor made of | cesium iodide
🗑
|
||||
| what part of the image intensifier converts visible light to electrons | photocathode
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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
Created by:
ambey
Popular Radiology sets