Intro To Rad FINAL Flashcards
Fluoroscopy-
Shows dynamics/ internal motion
Static Image-
regular diagnostic image
Dynamic image-
studies in motion
Radiographer assists radiologists and patient by-(5)
-setting up room
-preparing contrast media
-taking scout images
-assisting in procedures
-taking follow up images
R/F system design-
-Fluoroscopic tube below table
-image intensifier or flat panel detector above
-tilt 90/15
-patient placed between fluorotube and image intensifier
Spot film-
Routine pics they screenshot while doing fluoroscope
C-Arm
mobile fluoro unit used in surgery, cath lab, and interventional suites
Radiation Biology-
branch of biological science dealing with the effects of ionizing radiation on living organisms
Radiation Sources-
-Natural:
<cosmic(sun and stars)
<terrestrial (earth elements uranium)
<Body
-Artificial:
<medical and dental x rays
<manmade products(cellphone,powerlines)
Secondary-
produced in atoms of body; byproduct of patient reacting to primary radiation
Exposure Index-
amount of radiation your cassette receives.
Quantom Mottle-
rough and grainy; doesn’t have enough radiation-low mA
Automatic Rescaling-
computer automatically gives you brightness and contrast for good image; bad though since you don’t know if too much IR exposure
Window Width-
contrast (gray scale) an advantage of digital it can be manipulated.
Window level-
brightness; an advantage of digital can be manipulated
3 Cardinal Principles of Radiation Protection-
- Minimize time
-Maximize distance
-maximize shielding
Dosimeter Monitors-
keep track of your radiation exposure; Do not protect you!
Dose equivalent unit-
-in technologist
REM, Sievert Sr(SI)
Absorbed dose unit-
-how much absorbed in patient
-rad, Gray (Gy) (SI)
Task analysis form-
doing job right;judged on how you do job right
legal Technologist Dose-
50 msv (5 rem) per year
Image reader-
-laser converts x-ray photon energy into digital electronic signal to display on workstation.
-cassette erased by light for reuse
Photostimulable Phosphor Plate(PSP)-
replaced film; energy from x-ray beam is trapped
increase sensitivity if-
less specialized, rapidly divide, immature cells0
Directed Radiography (DR)-
-portable flat-panel detector (special bucky contains detector)
- no reader needed; automatically displays on workplace monitor
Computed Radiography (CR)-
- uses specialized digital cassette requires processing in CR reader
Student dose-
1 mSv (.1 rem) per year
Fetal dose-
0.5 mSv (0.05) rem per month
Exposure Units-
roentgen (kg, Airkerma(SI)
Radiation units-
radiation from tube to technologsts
Genetic-
occurs in future offspring of exposed individuals
Clinical behavior form-
-ability to get along with others
-time management
-attitude
Decreased magnification= ____ spatial resolution
increased
Somatic-
2 types-
-Occurs in individual
-short term; nausea vomiting, decreased blood count, seizures, death
-long term; cancer, cataracts, life span shortening
Clinical uniforms-
-royal blue; conservative
-pant and top same fabric
-dress length no short than 2 inch below knee
-black, white, gray, royal blue
All tardy time will have to be made up if it excess__
-____ will count toward tardy time
-student who misses 3 days will____
- 1 hour
-leaving early or being sent home - receive a warning (DAF)
Program goals- (4)
- graduates will demonstrate clinical competence
- students will develop effective communication skills
- students will develop effective critical thinking and problem solving skills
- Program will satisfy the communities need for qualified radiographers
If four days are missed students clinical grade will be-
-each subsequent absence may result in__ pending__-
-dropped a letter grade
-dropped letter grade; department review
If student fails to follow proper call in procedures-
grade will lower a letter for each day they fail to
Inclement weather policy-
safety first at all times!
- if news say something don’t have to call in!
- text instructors to check 1st, cause not on same school
Each dosimeter is a __ record
3 month
Fingernails should not extend more than__ beyond finger tips
1/8”
Patch is to be sewn-
in center of left sleeve 1 inch below shoulder seam
Clinical uniforms-
-royal blue; conservative
-pant and top same fabric
-dress length no short than 2 inch below knee
-black, white, gray, royal blue
