CH 17 RADIOLOGY Flashcards
With what technology can physicians can view the inside of organs?
Computed Tomography (CT)
Most common xray?
Chest
Gives detailed images of the patients anatomy?
Magnetic Resonance (MR)
CVTs use what imaging technique?
Biplane fluoroscopy
NUCMED techs administer trace amounts of radiopharmaceuticcals to detect what?
Gamma Rays
Xray discover by who and in what year?
Wilhelm Corad Roentgen, 1895
while experimenting with Crooke’s tube
First dental radiograph was taken by who?
Dr. Otto Walkoff
X-rays travel how?
Wave motion (wavelength), straight lines at speed of light
Radiation safety is who’s responsibility?
Everyone
What group monitors ionizing radiation?
Nuclear Regulatory Commission (NRC)
Distance reduces dose due to what law?
Inverse Square Law
What are the four major ways to reduce radiation exposure?
Time
Distance
Shielding
Amount
X-ray should be what minimum distance from worker?
6’
ALARA
As Low As Reasonably Achievable
The only exception for the patient to wear a protective thyroid collar is with what radiograph?
Panorex
What should radiology personnel never wear in the direct line of radiation?
Dosimetry radiation film badge
Film badges are collected how often?
Every 6-7 weeks
Non-radiation worker max dose per year?
500 mRem (5mSv)
Total whole body doses for workers can be found in?
10 CFR Part 20
5,000 mRem or 5 Rem
P-5055
Lace, lul
Radiation health manual
BUMEDINST 4010.3
Rice, toes.tree
Precious Metals Recovery Program
BUMEDINST 6220.9
Jan, nose.spine
Infection Control Program
BUMEDINST 6600.10
Nosocomial Infection Control Program
SF-519
Radiologic Consultation Request/Report
Used to obtain radiographs of the crowns, roots, and supporting structures of the teeth?
Periapical
The full mouth periapical exam consists of how many periapical radiographs?
14
What examination reveals the presence of interproximal caries, certain pulp conditions, overhanging restorations, improperly fitting crowns, recurrent caries beneath restorations, and resorption of the alveolar bone?
Interproximal
Exam used for fractures of the jaw?
Occlusal
Occlusal radiographs are exposed using what technique?
Bisected angle
How many basic steps involved in processing x-ray film?
Five
Two sources of darkroom illumination?
White light
Safe light
Limit length of undeveloped film exposure to white light for how long?
2 min
Most common method of processing med/dental radiographs IN THE NAVY?
Automatic processing
How many seconds must elapse before inserting the next patients film to avoid mix up?
15
Change the developer and fixer at least how often?
3-4 weeks
Machine used to produce an extraoral radiograph that shows both dental arches and temporomandibular joints?
Panoramic
