Image Production
Visible difference in 2 adjacent objects on image
Image Contrast
Cleaning method that removes all microorganisms
Sterilization
Number of bones in a foot
26
Standard lead shield thickness
at least 0.5 mm of lead or equivalent
What is the public Frequent Annual Exposure EfD limit?
1 mSv
Main controlling factor for IR exposure
mAs
Shock caused by infections
Septic Shock
CR Tube angulation and arm flexion for radial head Coyle Method
CR 45 degrees toward shoulder
arm 90 degrees flexed
What are the requirements that must be met for leakage radiation?
Must not exceed 1mGy/hr at a distance of 1 meter from source at highest voltage/current
Radiographing a patient's wrong body part is an example of what malpractice?
battery
Changes the voltage to kilo-voltage in the x-ray circuit.
Step-Up Transformer
Normal blood pressure and body temperature for adults
90/60 mm Hg to 120/80 mm Hg
98.6F
Which bone is the coracoid process part of
scapula
Total fetus radiation dose during pregnancy
less than 5.0 mSv
A health effect that requires a specific level of exposure to ionizing radiation before it can occur
Deterministic Effect
The width of a material required to reduce the intensity of an x-ray to half its original value
Half Value Layer (HVL)
5 Stages of Grief in order
Denial
Anger
Bargaining
Depression
Acceptance
Type of fracture when the break is diagonal across the bone
Oblique Fracture
What is the minimum dosage that an OSL dosimeter can read?
0.01 mSv
(1 mR = 1 mrem = 0.001 rem )
Cancer is an example of this health effect due to radiation exposure
Stochastic Effect
Absorption and Scattering of Photons that reduces the beam intensity
Attenuation
3 functions of an NG Tube
Patient Feeding
Giving Medication
Gastric Drainage
Which oblique x-ray projection is used for the sternum
RAO
What is OER and why is it important?
Oxygen Enhancement Ratio
harmful dose without O2 / harmful dose with O2
During radiation exposure, oxygenated tissue becomes more radiosensitive
What are the 3 main parts of the image intensifier made of?
input phosphor: cesium iodide
photocathode: cesium & antimony
output phosphor: zinc cadmium sulfate