answers.
Nov. 8, 1895 by Wilhelm Roentgen at University of Wurzburg, Germany
- Answer When, who, and where xrays were discovered
American Society of Radiologic Technologists (ASRT) - Answer Founded
in Chicago in 1920
continuing education, professional journal, guidance for radiographic
educators, and publishes a CODE OF ETHICS
American Registry of Radiologic Technologists (ARRT) - Answer establish
standards and examinations to certify RTs
published Rules of Ethics
Joint Review Committee on Education in Radiologic Technology (JRCERT)
- Answer National organization that formally accredits schools of rad
tech. Formed in 1969. Also accredits limited radiographer programs
Reciprocity - Answer The credential that is issued in one state is upheld
in another
Practicing outside your credentials may result in - Answer fines,
imprisonment, or both
The # of states that utilize ARRT limited scope exam for state licensing -
Answer 35
xray tube - Answer source of xrays
tube housing - Answer lead-lined casing that envelops the xray tube
,tube port - Answer the hole where the xrays exit from the xray tube
primary radiation - Answer the xrays that leave the tube
radiation field - Answer the squared area of the xray beam that strikes
the patient and x ray table
central ray - Answer imaginary line that is in the center of the xray beam
image receptor - Answer the device that catches the xrays after they
have passed through the pt
tissue density - Answer bone will absorb more radiation than less dense
tissue, like muscle
remnant radiation - Answer the radiation that passes thru the pt and
hits the IR creating a latent image on the IR before it is processed
visible image - Answer what you get when you process a latent image
on an IR
attenuation - Answer absorption of the xray beam into matter
scatter - Answer the patient is the primary source of scatter
scatter radiation - Answer has less energy than the primary x ray beam
but is not as easily controlled
,scatter radiation fog - Answer unwanted image exposure caused by
scatter radiation
Most frequent adverse event during an xray - Answer patient falling
How body parts are measured to determine correct exposure factors -
Answer with a caliper, in cm
below 85 kvp, an adjustment of 2 kvp/cm will compensate for small
changes in what/ - Answer Size of the body part
Above 85 kvp, a change of 3 kvp/cm is necessary depending on.... -
Answer size of the body part
Best factor to change when compensating for part size - Answer mAs
How much to increase mAs for a 2 cm increase in part size - Answer
30%
how much to decrease mAs for a 2 cm decrease in part size - Answer
20%
Alteration of Contrast with kilovoltage - Answer the 15% rule
When the kvp is increased - Answer lengthens the scale of contrast,
"less contrast"
when the kvp is decreased - Answer shortens the scale of contrast,
"more contrast"
, Using the 15% rule to increase contrast - Answer Decrease kvp by 15%
and multiply mAs by 2(double it)
Using the 15% rule to decrease contrast - Answer Increase the kvp by
15% and divide the mAs by 2 (half it)
What composes an atom - Answer Proton, neutron, and electron
Nucleus is made up of... - Answer protons and neutrons
The electrons circle the nucleus in... - Answer shells
Protons have what kind of charge - Answer Positive
Electrons have what kind of charge - Answer negative
Neutrons have what kind of charge - Answer none
The K shell is ____________ the nucleus - Answer nearest
Most important electron shell in radiography - Answer K shell
Electrons are held in place by a ____________ _______. - Answer
binding energy
Calcium = - Answer Ca
Lead = - Answer Pb